25074540 has 36 divisors (see below), whose sum is σ = 76059984. Its totient is φ = 6686496.

The previous prime is 25074529. The next prime is 25074557. The reversal of 25074540 is 4547052.

25074540 is a `hidden beast` number, since 2 + 50 + 74 + 540 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 69472 + ... + 69831.

Almost surely, 2^25074540 is an apocalyptic number.

25074540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25074540 is an abundant number, since it is smaller than the sum of its proper divisors (50985444).

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

25074540 is a wasteful number, since it uses less digits than its factorization.

25074540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139318 (or 139313 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 25074540 is about 5007.4484520562. The cubic root of 25074540 is about 292.6920938491.

The spelling of 25074540 in words is "twenty-five million, seventy-four thousand, five hundred forty".