25248220 has 12 divisors (see below), whose sum is σ = 53021304. Its totient is φ = 10099280.

The previous prime is 25248191. The next prime is 25248271. The reversal of 25248220 is 2284252.

It is a super-2 number, since 2×25248220² = 1274945226336800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631186 + ... + 631225.

It is an arithmetic number, because the mean of its divisors is an integer number (4418442).

Almost surely, 2^25248220 is an apocalyptic number.

25248220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25248220 is an abundant number, since it is smaller than the sum of its proper divisors (27773084).

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

25248220 is a wasteful number, since it uses less digits than its factorization.

25248220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262420 (or 1262418 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 25248220 is about 5024.7606908190. The cubic root of 25248220 is about 293.3663214737.

The spelling of 25248220 in words is "twenty-five million, two hundred forty-eight thousand, two hundred twenty".