2495638900 has 144 divisors (see below), whose sum is σ = 5775630336. Its totient is φ = 934778880.

The previous prime is 2495638883. The next prime is 2495638903. The reversal of 2495638900 is 98365942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495638903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19650637 + ... + 19650763.

It is an arithmetic number, because the mean of its divisors is an integer number (40108544).

Almost surely, 2^2495638900 is an apocalyptic number.

2495638900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2495638900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2887815168).

2495638900 is an abundant number, since it is smaller than the sum of its proper divisors (3279991436).

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

2495638900 is a wasteful number, since it uses less digits than its factorization.

2495638900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 2495638900 is about 49956.3699641998. The cubic root of 2495638900 is about 1356.4191591763.

The spelling of 2495638900 in words is "two billion, four hundred ninety-five million, six hundred thirty-eight thousand, nine hundred".