25220924 has 6 divisors (see below), whose sum is σ = 44136624. Its totient is φ = 12610460.

The previous prime is 25220869. The next prime is 25220929. The reversal of 25220924 is 42902252.

It is a junction number, because it is equal to n+sod(n) for n = 25220893 and 25220902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25220929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152612 + ... + 3152619.

It is an arithmetic number, because the mean of its divisors is an integer number (7356104).

Almost surely, 2^25220924 is an apocalyptic number.

It is an amenable number.

25220924 is a deficient number, since it is larger than the sum of its proper divisors (18915700).

25220924 is a wasteful number, since it uses less digits than its factorization.

25220924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305235 (or 6305233 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25220924 is about 5022.0438070570. The cubic root of 25220924 is about 293.2605633307.

The spelling of 25220924 in words is "twenty-five million, two hundred twenty thousand, nine hundred twenty-four".