2656512025 has 12 divisors (see below), whose sum is σ = 3303860092. Its totient is φ = 2118896640.

The previous prime is 2656512017. The next prime is 2656512049. The reversal of 2656512025 is 5202156562.

It can be written as a sum of positive squares in 6 ways, for example, as 7557001 + 2648955024 = 2749^2 + 51468^2 .

It is not a de Polignac number, because 2656512025 - 2³ = 2656512017 is a prime.

It is a super-2 number, since 2×2656512025² = 14114112277939201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 149232 + ... + 166081.

Almost surely, 2^2656512025 is an apocalyptic number.

2656512025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2656512025 is a deficient number, since it is larger than the sum of its proper divisors (647348067).

2656512025 is a wasteful number, since it uses less digits than its factorization.

2656512025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315660 (or 315655 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 2656512025 is about 51541.3622734208. The cubic root of 2656512025 is about 1384.9601008546.

Adding to 2656512025 its reverse (5202156562), we get a palindrome (7858668587).

The spelling of 2656512025 in words is "two billion, six hundred fifty-six million, five hundred twelve thousand, twenty-five".