3125115625 has 12 divisors (see below), whose sum is σ = 3906148428. Its totient is φ = 2500090000.

The previous prime is 3125115613. The next prime is 3125115641. The reversal of 3125115625 is 5265115213.

It can be written as a sum of positive squares in 6 ways, for example, as 1862095104 + 1263020521 = 43152^2 + 35539^2 .

It is not a de Polignac number, because 3125115625 - 2⁹ = 3125115113 is a prime.

It is a Duffinian number.

3125115625 is a modest number, since divided by 115625 gives 3125 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496894 + ... + 503143.

It is an arithmetic number, because the mean of its divisors is an integer number (325512369).

Almost surely, 2^3125115625 is an apocalyptic number.

It is an amenable number.

3125115625 is a deficient number, since it is larger than the sum of its proper divisors (781032803).

3125115625 is an frugal number, since it uses more digits than its factorization.

3125115625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000062 (or 1000042 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 3125115625 is about 55902.7336093683. The cubic root of 3125115625 is about 1462.0269003268.

It can be divided in two parts, 31251 and 15625, that multiplied together give a triangular number (488296875 = T₃₁₂₅₀).

The spelling of 3125115625 in words is "three billion, one hundred twenty-five million, one hundred fifteen thousand, six hundred twenty-five".