2504036021 has 2 divisors, whose sum is σ = 2504036022. Its totient is φ = 2504036020.

The previous prime is 2504035991. The next prime is 2504036033. The reversal of 2504036021 is 1206304052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2469096100 + 34939921 = 49690^2 + 5911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2504036021 - 2²² = 2499841717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2504030021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252018010 + 1252018011.

It is an arithmetic number, because the mean of its divisors is an integer number (1252018011).

Almost surely, 2^2504036021 is an apocalyptic number.

It is an amenable number.

2504036021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504036021 is an equidigital number, since it uses as much as digits as its factorization.

2504036021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2504036021 is about 50040.3439336702. The cubic root of 2504036021 is about 1357.9387787150.

The spelling of 2504036021 in words is "two billion, five hundred four million, thirty-six thousand, twenty-one".