2525400920 has 64 divisors (see below), whose sum is σ = 6776248320. Its totient is φ = 828203904.

The previous prime is 2525400901. The next prime is 2525400959. The reversal of 2525400920 is 290045252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189632 + ... + 202511.

It is an arithmetic number, because the mean of its divisors is an integer number (105878880).

Almost surely, 2^2525400920 is an apocalyptic number.

2525400920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525400920 is an abundant number, since it is smaller than the sum of its proper divisors (4250847400).

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

2525400920 is a wasteful number, since it uses less digits than its factorization.

2525400920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392184 (or 392180 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2525400920 is about 50253.3672503644. The cubic root of 2525400920 is about 1361.7899082464.

The spelling of 2525400920 in words is "two billion, five hundred twenty-five million, four hundred thousand, nine hundred twenty".