625011064631105 has 4 divisors (see below), whose sum is σ = 750013277557332. Its totient is φ = 500008851704880.

The previous prime is 625011064631047. The next prime is 625011064631111. The reversal of 625011064631105 is 501136460110526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245014405420096 + 379996659211009 = 15652936^2 + 19493503^2 .

It is a de Polignac number, because none of the positive numbers 2^k-625011064631105 is a prime.

It is a super-2 number, since 2×625011064631105² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62501106463106 + ... + 62501106463115.

It is an arithmetic number, because the mean of its divisors is an integer number (187503319389333).

Almost surely, 2^{625011064631105} is an apocalyptic number.

It is an amenable number.

625011064631105 is a deficient number, since it is larger than the sum of its proper divisors (125002212926227).

625011064631105 is a wasteful number, since it uses less digits than its factorization.

625011064631105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125002212926226.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 625011064631105 in words is "six hundred twenty-five trillion, eleven billion, sixty-four million, six hundred thirty-one thousand, one hundred five".