656851552 has 24 divisors (see below), whose sum is σ = 1477916496. Its totient is φ = 281507712.

The previous prime is 656851541. The next prime is 656851553. The reversal of 656851552 is 255158656.

It is a super-2 number, since 2×656851552² = 862907922729617408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 656851499 and 656851508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656851553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465963 + ... + 1466410.

It is an arithmetic number, because the mean of its divisors is an integer number (61579854).

Almost surely, 2^656851552 is an apocalyptic number.

It is an amenable number.

656851552 is an abundant number, since it is smaller than the sum of its proper divisors (821064944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656851552 is a wasteful number, since it uses less digits than its factorization.

656851552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932390 (or 2932382 counting only the distinct ones).

The product of its digits is 360000, while the sum is 43.

The square root of 656851552 is about 25629.1153183250. The cubic root of 656851552 is about 869.2721053101.

The spelling of 656851552 in words is "six hundred fifty-six million, eight hundred fifty-one thousand, five hundred fifty-two".