2501738164 has 18 divisors (see below), whose sum is σ = 4487439782. Its totient is φ = 1220356800.

The previous prime is 2501738159. The next prime is 2501738167. The reversal of 2501738164 is 4618371052.

It can be written as a sum of positive squares in 3 ways, for example, as 517926564 + 1983811600 = 22758^2 + 44540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501738167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179307 + ... + 192754.

Almost surely, 2^2501738164 is an apocalyptic number.

It is an amenable number.

2501738164 is a deficient number, since it is larger than the sum of its proper divisors (1985701618).

2501738164 is a wasteful number, since it uses less digits than its factorization.

2501738164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372147 (or 372104 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2501738164 is about 50017.3786198357. The cubic root of 2501738164 is about 1357.5232756281.

The spelling of 2501738164 in words is "two billion, five hundred one million, seven hundred thirty-eight thousand, one hundred sixty-four".