25383492 has 18 divisors (see below), whose sum is σ = 64163918. Its totient is φ = 8461152.

The previous prime is 25383481. The next prime is 25383493. The reversal of 25383492 is 29438352.

25383492 is a `hidden beast` number, since 2 + 538 + 34 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 11943936 = 3666^2 + 3456^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×25383492² = 1288643332228128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 705097 = 25383492 / (2 + 5 + 3 + 8 + 3 + 4 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (25383493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352513 + ... + 352584.

Almost surely, 2^25383492 is an apocalyptic number.

It is an amenable number.

25383492 is an abundant number, since it is smaller than the sum of its proper divisors (38780426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25383492 is a wasteful number, since it uses less digits than its factorization.

25383492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705107 (or 705102 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 25383492 is about 5038.2032511601. The cubic root of 25383492 is about 293.8893099898.

The spelling of 25383492 in words is "twenty-five million, three hundred eighty-three thousand, four hundred ninety-two".