25576540 has 24 divisors (see below), whose sum is σ = 58594032. Its totient is φ = 9300480.

The previous prime is 25576471. The next prime is 25576547. The reversal of 25576540 is 4567552.

It is a junction number, because it is equal to n+sod(n) for n = 25576496 and 25576505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25576547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57909 + ... + 58348.

It is an arithmetic number, because the mean of its divisors is an integer number (2441418).

Almost surely, 2^25576540 is an apocalyptic number.

25576540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25576540 is an abundant number, since it is smaller than the sum of its proper divisors (33017492).

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

25576540 is a wasteful number, since it uses less digits than its factorization.

25576540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116277 (or 116275 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 25576540 is about 5057.3253800799. The cubic root of 25576540 is about 294.6324638566.

The spelling of 25576540 in words is "twenty-five million, five hundred seventy-six thousand, five hundred forty".