256154725 has 12 divisors (see below), whose sum is σ = 336316644. Its totient is φ = 192869120.

The previous prime is 256154719. The next prime is 256154753. The reversal of 256154725 is 527451652.

256154725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 29441476 + 226713249 = 5426^2 + 15057^2 .

It is not a de Polignac number, because 256154725 - 2¹⁷ = 256023653 is a prime.

It is a congruent 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, 300934 + ... + 301783.

It is an arithmetic number, because the mean of its divisors is an integer number (28026387).

Almost surely, 2^256154725 is an apocalyptic number.

256154725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256154725 is a deficient number, since it is larger than the sum of its proper divisors (80161919).

256154725 is a wasteful number, since it uses less digits than its factorization.

256154725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602744 (or 602739 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 256154725 is about 16004.8344258852. The cubic root of 256154725 is about 635.0883172261.

The spelling of 256154725 in words is "two hundred fifty-six million, one hundred fifty-four thousand, seven hundred twenty-five".