2595249421 has 4 divisors (see below), whose sum is σ = 2595648832. Its totient is φ = 2594850012.

The previous prime is 2595249409. The next prime is 2595249457. The reversal of 2595249421 is 1249425952.

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 a cyclic number.

It is not a de Polignac number, because 2595249421 - 2²⁷ = 2461031693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2595249521) 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, 189795 + ... + 203008.

It is an arithmetic number, because the mean of its divisors is an integer number (648912208).

Almost surely, 2^2595249421 is an apocalyptic number.

It is an amenable number.

2595249421 is a deficient number, since it is larger than the sum of its proper divisors (399411).

2595249421 is an equidigital number, since it uses as much as digits as its factorization.

2595249421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399410.

The product of its digits is 259200, while the sum is 43.

The square root of 2595249421 is about 50943.5905782072. The cubic root of 2595249421 is about 1374.2308727332.

The spelling of 2595249421 in words is "two billion, five hundred ninety-five million, two hundred forty-nine thousand, four hundred twenty-one".