55651560007 has 8 divisors (see below), whose sum is σ = 55815782400. Its totient is φ = 55487389464.

The previous prime is 55651559993. The next prime is 55651560011. The reversal of 55651560007 is 70006515655.

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

It is a cyclic number.

It is not a de Polignac number, because 55651560007 - 2³¹ = 53504076359 is a prime.

It is a super-2 number, since 2×55651560007² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651560017) 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, 3541594 + ... + 3557272.

It is an arithmetic number, because the mean of its divisors is an integer number (6976972800).

Almost surely, 2^55651560007 is an apocalyptic number.

55651560007 is a deficient number, since it is larger than the sum of its proper divisors (164222393).

55651560007 is a wasteful number, since it uses less digits than its factorization.

55651560007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25925.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 55651560007 in words is "fifty-five billion, six hundred fifty-one million, five hundred sixty thousand, seven".