655243025 has 24 divisors (see below), whose sum is σ = 867355200. Its totient is φ = 489585600.

The previous prime is 655243013. The next prime is 655243031. The reversal of 655243025 is 520342556.

It is not a de Polignac number, because 655243025 - 2⁶ = 655242961 is a prime.

It is a super-2 number, since 2×655243025² = 858686843622301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655242982 and 655243000.

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, 24011 + ... + 43439.

It is an arithmetic number, because the mean of its divisors is an integer number (36139800).

Almost surely, 2^655243025 is an apocalyptic number.

It is an amenable number.

655243025 is a deficient number, since it is larger than the sum of its proper divisors (212112175).

655243025 is a wasteful number, since it uses less digits than its factorization.

655243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19529 (or 19524 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 655243025 is about 25597.7152300747. The cubic root of 655243025 is about 868.5619547105.

The spelling of 655243025 in words is "six hundred fifty-five million, two hundred forty-three thousand, twenty-five".