256195498 has 16 divisors (see below), whose sum is σ = 414670536. Its totient is φ = 118010880.

The previous prime is 256195469. The next prime is 256195507. The reversal of 256195498 is 894591652.

256195498 is digitally balanced in base 3, 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 4 ways, for example, as 218655369 + 37540129 = 14787^2 + 6127^2 .

It is a super-2 number, since 2×256195498² = 131272266390936008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4090 + ... + 23002.

Almost surely, 2^256195498 is an apocalyptic number.

256195498 is a deficient number, since it is larger than the sum of its proper divisors (158475038).

256195498 is a wasteful number, since it uses less digits than its factorization.

256195498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19449.

The product of its digits is 777600, while the sum is 49.

The square root of 256195498 is about 16006.1081465795. The cubic root of 256195498 is about 635.1220118120.

The spelling of 256195498 in words is "two hundred fifty-six million, one hundred ninety-five thousand, four hundred ninety-eight".