2501974897 has 4 divisors (see below), whose sum is σ = 2502289636. Its totient is φ = 2501660160.

The previous prime is 2501974879. The next prime is 2501974907. The reversal of 2501974897 is 7984791052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 547981281 + 1953993616 = 23409^2 + 44204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2501974897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2501974297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145128 + ... + 161449.

It is an arithmetic number, because the mean of its divisors is an integer number (625572409).

Almost surely, 2^2501974897 is an apocalyptic number.

It is an amenable number.

2501974897 is a deficient number, since it is larger than the sum of its proper divisors (314739).

2501974897 is an equidigital number, since it uses as much as digits as its factorization.

2501974897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314738.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The square root of 2501974897 is about 50019.7450713216. The cubic root of 2501974897 is about 1357.5660939142.

The spelling of 2501974897 in words is "two billion, five hundred one million, nine hundred seventy-four thousand, eight hundred ninety-seven".