1252626556625 has 8 divisors (see below), whose sum is σ = 1563277942824. Its totient is φ = 1002101245200.

The previous prime is 1252626556619. The next prime is 1252626556639. The reversal of 1252626556625 is 5266556262521.

It can be written as a sum of positive squares in 4 ways, for example, as 6150323776 + 1246476232849 = 78424^2 + 1116457^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1252626556625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5010506102 + ... + 5010506351.

It is an arithmetic number, because the mean of its divisors is an integer number (195409742853).

Almost surely, 2^{1252626556625} is an apocalyptic number.

It is an amenable number.

1252626556625 is a deficient number, since it is larger than the sum of its proper divisors (310651386199).

1252626556625 is an equidigital number, since it uses as much as digits as its factorization.

1252626556625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021012468 (or 10021012458 counting only the distinct ones).

The product of its digits is 12960000, while the sum is 53.

The spelling of 1252626556625 in words is "one trillion, two hundred fifty-two billion, six hundred twenty-six million, five hundred fifty-six thousand, six hundred twenty-five".