2501401988 has 6 divisors (see below), whose sum is σ = 4377453486. Its totient is φ = 1250700992.

The previous prime is 2501401949. The next prime is 2501401999. The reversal of 2501401988 is 8891041052.

It can be written as a sum of positive squares in only one way, i.e., 1647710464 + 853691524 = 40592^2 + 29218^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312675245 + ... + 312675252.

It is an arithmetic number, because the mean of its divisors is an integer number (729575581).

Almost surely, 2^2501401988 is an apocalyptic number.

It is an amenable number.

2501401988 is a deficient number, since it is larger than the sum of its proper divisors (1876051498).

2501401988 is a wasteful number, since it uses less digits than its factorization.

2501401988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625350501 (or 625350499 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 2501401988 is about 50014.0179149806. The cubic root of 2501401988 is about 1357.4624662817.

The spelling of 2501401988 in words is "two billion, five hundred one million, four hundred one thousand, nine hundred eighty-eight".