256461425 has 12 divisors (see below), whose sum is σ = 346922736. Its totient is φ = 186517200.

The previous prime is 256461383. The next prime is 256461433. The reversal of 256461425 is 524164652.

256461425 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 256461425 - 2¹⁰ = 256460401 is a prime.

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, 466019 + ... + 466568.

It is an arithmetic number, because the mean of its divisors is an integer number (28910228).

Almost surely, 2^256461425 is an apocalyptic number.

256461425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256461425 is a deficient number, since it is larger than the sum of its proper divisors (90461311).

256461425 is a wasteful number, since it uses less digits than its factorization.

256461425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932608 (or 932603 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 256461425 is about 16014.4130395091. The cubic root of 256461425 is about 635.3416847949.

The spelling of 256461425 in words is "two hundred fifty-six million, four hundred sixty-one thousand, four hundred twenty-five".