3125520315 has 24 divisors (see below), whose sum is σ = 5431110048. Its totient is φ = 1662777600.

The previous prime is 3125520287. The next prime is 3125520337. The reversal of 3125520315 is 5130255213.

It is a happy number.

3125520315 is a `hidden beast` number, since 3 + 125 + 520 + 3 + 15 = 666.

It is not a de Polignac number, because 3125520315 - 2¹⁷ = 3125389243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68559 + ... + 104648.

It is an arithmetic number, because the mean of its divisors is an integer number (226296252).

Almost surely, 2^3125520315 is an apocalyptic number.

3125520315 is a deficient number, since it is larger than the sum of its proper divisors (2305589733).

3125520315 is a wasteful number, since it uses less digits than its factorization.

3125520315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173619 (or 173616 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 3125520315 is about 55906.3530826327. The cubic root of 3125520315 is about 1462.0900064856.

Adding to 3125520315 its reverse (5130255213), we get a palindrome (8255775528).

The spelling of 3125520315 in words is "three billion, one hundred twenty-five million, five hundred twenty thousand, three hundred fifteen".