55751907 has 8 divisors (see below), whose sum is σ = 74416320. Its totient is φ = 37127720.

The previous prime is 55751903. The next prime is 55751911. The reversal of 55751907 is 70915755.

It is an interprime number because it is at equal distance from previous prime (55751903) and next prime (55751911).

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 55751907 - 2² = 55751903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55751903) 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, 6657 + ... + 12482.

It is an arithmetic number, because the mean of its divisors is an integer number (9302040).

Almost surely, 2^55751907 is an apocalyptic number.

55751907 is a deficient number, since it is larger than the sum of its proper divisors (18664413).

55751907 is a wasteful number, since it uses less digits than its factorization.

55751907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113.

The product of its (nonzero) digits is 55125, while the sum is 39.

The square root of 55751907 is about 7466.7199626074. The cubic root of 55751907 is about 382.0204182136.

The spelling of 55751907 in words is "fifty-five million, seven hundred fifty-one thousand, nine hundred seven".