25248949400 has 24 divisors (see below), whose sum is σ = 58703807820. Its totient is φ = 10099579680.

The previous prime is 25248949399. The next prime is 25248949447. The reversal of 25248949400 is 494984252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63122174 + ... + 63122573.

Almost surely, 2^25248949400 is an apocalyptic number.

25248949400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25248949400 is an abundant number, since it is smaller than the sum of its proper divisors (33454858420).

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

25248949400 is a wasteful number, since it uses less digits than its factorization.

25248949400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126244763 (or 126244754 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 25248949400 in words is "twenty-five billion, two hundred forty-eight million, nine hundred forty-nine thousand, four hundred".