51625038667 has 2 divisors, whose sum is σ = 51625038668. Its totient is φ = 51625038666.

The previous prime is 51625038659. The next prime is 51625038701. The reversal of 51625038667 is 76683052615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51625038667 - 2³ = 51625038659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51625038667.

It is not a weakly prime, because it can be changed into another prime (51625038617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25812519333 + 25812519334.

It is an arithmetic number, because the mean of its divisors is an integer number (25812519334).

Almost surely, 2^51625038667 is an apocalyptic number.

51625038667 is a deficient number, since it is larger than the sum of its proper divisors (1).

51625038667 is an equidigital number, since it uses as much as digits as its factorization.

51625038667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 51625038667 in words is "fifty-one billion, six hundred twenty-five million, thirty-eight thousand, six hundred sixty-seven".