2157725004 has 24 divisors (see below), whose sum is σ = 5170765488. Its totient is φ = 699802560.

The previous prime is 2157724997. The next prime is 2157725033. The reversal of 2157725004 is 4005277512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429427 + ... + 2430314.

It is an arithmetic number, because the mean of its divisors is an integer number (215448562).

Almost surely, 2^2157725004 is an apocalyptic number.

It is an amenable number.

2157725004 is an abundant number, since it is smaller than the sum of its proper divisors (3013040484).

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

2157725004 is a wasteful number, since it uses less digits than its factorization.

2157725004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859785 (or 4859783 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 2157725004 is about 46451.3186465142. The cubic root of 2157725004 is about 1292.2068277166.

The spelling of 2157725004 in words is "two billion, one hundred fifty-seven million, seven hundred twenty-five thousand, four".