2538915937 has 4 divisors (see below), whose sum is σ = 2539406896. Its totient is φ = 2538424980.

The previous prime is 2538915931. The next prime is 2538915943. The reversal of 2538915937 is 7395198352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2538915931) and next prime (2538915943).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2538915937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2538915931) 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, 237639 + ... + 248092.

It is an arithmetic number, because the mean of its divisors is an integer number (634851724).

Almost surely, 2^2538915937 is an apocalyptic number.

It is an amenable number.

2538915937 is a deficient number, since it is larger than the sum of its proper divisors (490959).

2538915937 is an equidigital number, since it uses as much as digits as its factorization.

2538915937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490958.

The product of its digits is 2041200, while the sum is 52.

The square root of 2538915937 is about 50387.6565936540. The cubic root of 2538915937 is about 1364.2148538337.

The spelling of 2538915937 in words is "two billion, five hundred thirty-eight million, nine hundred fifteen thousand, nine hundred thirty-seven".