25776530 has 16 divisors (see below), whose sum is σ = 49967064. Its totient is φ = 9517440.

The previous prime is 25776529. The next prime is 25776547. The reversal of 25776530 is 3567752.

It can be written as a sum of positive squares in 4 ways, for example, as 23493409 + 2283121 = 4847^2 + 1511^2 .

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, 99011 + ... + 99270.

Almost surely, 2^25776530 is an apocalyptic number.

25776530 is a deficient number, since it is larger than the sum of its proper divisors (24190534).

25776530 is a wasteful number, since it uses less digits than its factorization.

25776530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198301.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 25776530 is about 5077.0591881521. The cubic root of 25776530 is about 295.3984083555.

The spelling of 25776530 in words is "twenty-five million, seven hundred seventy-six thousand, five hundred thirty".