25742484 has 18 divisors (see below), whose sum is σ = 65071370. Its totient is φ = 8580816.

The previous prime is 25742477. The next prime is 25742489. The reversal of 25742484 is 48424752.

25742484 is a `hidden beast` number, since 2 + 574 + 2 + 4 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 11088900 = 3828^2 + 3330^2 .

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

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: 715069 = 25742484 / (2 + 5 + 7 + 4 + 2 + 4 + 8 + 4).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25742489) 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, 357499 + ... + 357570.

Almost surely, 2^25742484 is an apocalyptic number.

It is an amenable number.

25742484 is an abundant number, since it is smaller than the sum of its proper divisors (39328886).

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

25742484 is a wasteful number, since it uses less digits than its factorization.

25742484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715079 (or 715074 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 25742484 is about 5073.7051550125. The cubic root of 25742484 is about 295.2682956091.

The spelling of 25742484 in words is "twenty-five million, seven hundred forty-two thousand, four hundred eighty-four".