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55252453 = 291905257
BaseRepresentation
bin1101001011000…
…1010111100101
310211222010010011
43102301113211
5103121034303
65252130221
71240431604
oct322612745
9124863104
1055252453
1129208a93
1216606971
13b5a7079
1474a3a3b
154cb616d
hex34b15e5

55252453 has 4 divisors (see below), whose sum is σ = 57157740. Its totient is φ = 53347168.

The previous prime is 55252441. The next prime is 55252469. The reversal of 55252453 is 35425255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35425255 = 57085051.

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 10870209 = 6662^2 + 3297^2 .

It is a cyclic number.

It is not a de Polignac number, because 55252453 - 29 = 55251941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952600 + ... + 952657.

It is an arithmetic number, because the mean of its divisors is an integer number (14289435).

Almost surely, 255252453 is an apocalyptic number.

It is an amenable number.

55252453 is a deficient number, since it is larger than the sum of its proper divisors (1905287).

55252453 is a wasteful number, since it uses less digits than its factorization.

55252453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905286.

The product of its digits is 30000, while the sum is 31.

The square root of 55252453 is about 7433.1993784642. The cubic root of 55252453 is about 380.8762167260.

The spelling of 55252453 in words is "fifty-five million, two hundred fifty-two thousand, four hundred fifty-three".

Divisors: 1 29 1905257 55252453