656025601 has 8 divisors (see below), whose sum is σ = 817902144. Its totient is φ = 511188720.

The previous prime is 656025593. The next prime is 656025607. The reversal of 656025601 is 106520656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 656025601 - 2³ = 656025593 is a prime.

It is a super-2 number, since 2×656025601² = 860739178334822402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656025607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4259830 + ... + 4259983.

It is an arithmetic number, because the mean of its divisors is an integer number (102237768).

Almost surely, 2^656025601 is an apocalyptic number.

It is an amenable number.

656025601 is a deficient number, since it is larger than the sum of its proper divisors (161876543).

656025601 is a wasteful number, since it uses less digits than its factorization.

656025601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519831.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 656025601 is about 25612.9967204152. The cubic root of 656025601 is about 868.9076001643.

The spelling of 656025601 in words is "six hundred fifty-six million, twenty-five thousand, six hundred one".