2815956925 has 12 divisors (see below), whose sum is σ = 3697186356. Its totient is φ = 2120249600.

The previous prime is 2815956917. The next prime is 2815956929. The reversal of 2815956925 is 5296595182.

It can be written as a sum of positive squares in 6 ways, for example, as 487204 + 2815469721 = 698^2 + 53061^2 .

It is not a de Polignac number, because 2815956925 - 2³ = 2815956917 is a prime.

It is a super-2 number, since 2×2815956925² = 15859226806910911250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815956929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3312466 + ... + 3313315.

It is an arithmetic number, because the mean of its divisors is an integer number (308098863).

Almost surely, 2^2815956925 is an apocalyptic number.

2815956925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2815956925 is a deficient number, since it is larger than the sum of its proper divisors (881229431).

2815956925 is a wasteful number, since it uses less digits than its factorization.

2815956925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625808 (or 6625803 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 52.

The square root of 2815956925 is about 53065.5907815978. The cubic root of 2815956925 is about 1412.1321338212.

The spelling of 2815956925 in words is "two billion, eight hundred fifteen million, nine hundred fifty-six thousand, nine hundred twenty-five".