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55661053 = 715750647
BaseRepresentation
bin1101010001010…
…1000111111101
310212201212121111
43110111013331
5103222123203
65305002021
71244053060
oct324250775
9125655544
1055661053
1129467a78
1216783311
13b6bb046
14756c8d7
154d4726d
hex35151fd

55661053 has 8 divisors (see below), whose sum is σ = 64019072. Its totient is φ = 47404656.

The previous prime is 55661041. The next prime is 55661059. The reversal of 55661053 is 35016655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55661053 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 (55661059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24225 + ... + 26422.

It is an arithmetic number, because the mean of its divisors is an integer number (8002384).

Almost surely, 255661053 is an apocalyptic number.

It is an amenable number.

55661053 is a deficient number, since it is larger than the sum of its proper divisors (8358019).

55661053 is a wasteful number, since it uses less digits than its factorization.

55661053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50811.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55661053 is about 7460.6335521858. The cubic root of 55661053 is about 381.8127903159.

The spelling of 55661053 in words is "fifty-five million, six hundred sixty-one thousand, fifty-three".

Divisors: 1 7 157 1099 50647 354529 7951579 55661053