265556425 has 12 divisors (see below), whose sum is σ = 333259920. Its totient is φ = 209883920.

The previous prime is 265556419. The next prime is 265556449. The reversal of 265556425 is 524655562.

265556425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 265556425 - 2⁷ = 265556297 is a prime.

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, 61915 + ... + 66064.

It is an arithmetic number, because the mean of its divisors is an integer number (27771660).

Almost surely, 2^265556425 is an apocalyptic number.

265556425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265556425 is a deficient number, since it is larger than the sum of its proper divisors (67703495).

265556425 is a wasteful number, since it uses less digits than its factorization.

265556425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128072 (or 128067 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The square root of 265556425 is about 16295.9020922439. The cubic root of 265556425 is about 642.7650750572.

The spelling of 265556425 in words is "two hundred sixty-five million, five hundred fifty-six thousand, four hundred twenty-five".