2155007250 has 96 divisors (see below), whose sum is σ = 6356952576. Its totient is φ = 522420000.

The previous prime is 2155007249. The next prime is 2155007279. The reversal of 2155007250 is 527005512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18786 + ... + 68285.

It is an arithmetic number, because the mean of its divisors is an integer number (66218256).

Almost surely, 2^2155007250 is an apocalyptic number.

2155007250 is an abundant number, since it is smaller than the sum of its proper divisors (4201945326).

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

2155007250 is a wasteful number, since it uses less digits than its factorization.

2155007250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87105 (or 87092 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 2155007250 is about 46422.0556416883. The cubic root of 2155007250 is about 1291.6640684420.

The spelling of 2155007250 in words is "two billion, one hundred fifty-five million, seven thousand, two hundred fifty".