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55192574761 = 2349312
BaseRepresentation
bin110011011001101110…
…111101101100101001
312021110110120022002121
4303121232331230221
51401013244343021
641204412231241
73662503100452
oct633156755451
9167413508077
1055192574761
1121452851355
12a843a6b521
135287785c7c
142958200129
15168068a741
hexcd9bbdb29

55192574761 has 3 divisors (see below), whose sum is σ = 55192809693. Its totient is φ = 55192339830.

The previous prime is 55192574713. The next prime is 55192574777. The reversal of 55192574761 is 16747529155.

The square root of 55192574761 is 234931.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 55192574761 - 217 = 55192443689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55192574699 and 55192574708.

It is not an unprimeable number, because it can be changed into a prime (55192571761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117466 + ... + 352396.

It is an arithmetic number, because the mean of its divisors is an integer number (18397603231).

Almost surely, 255192574761 is an apocalyptic number.

55192574761 is the 234931-st square number.

55192574761 is the 117466-th centered octagonal number.

It is an amenable number.

55192574761 is a deficient number, since it is larger than the sum of its proper divisors (234932).

55192574761 is an frugal number, since it uses more digits than its factorization.

55192574761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469862 (or 234931 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 52.

The spelling of 55192574761 in words is "fifty-five billion, one hundred ninety-two million, five hundred seventy-four thousand, seven hundred sixty-one".

Divisors: 1 234931 55192574761