2500102421 has 4 divisors (see below), whose sum is σ = 2500218432. Its totient is φ = 2499986412.

The previous prime is 2500102411. The next prime is 2500102427. The reversal of 2500102421 is 1242010052.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2500102421 - 2²² = 2495908117 is a prime.

It is a super-2 number, since 2×2500102421² = 12501024230980122482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2500102421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500102427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15101 + ... + 72306.

It is an arithmetic number, because the mean of its divisors is an integer number (625054608).

Almost surely, 2^2500102421 is an apocalyptic number.

It is an amenable number.

2500102421 is a deficient number, since it is larger than the sum of its proper divisors (116011).

2500102421 is an equidigital number, since it uses as much as digits as its factorization.

2500102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116010.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2500102421 is about 50001.0241995102. The cubic root of 2500102421 is about 1357.2273422688.

Adding to 2500102421 its reverse (1242010052), we get a palindrome (3742112473).

The spelling of 2500102421 in words is "two billion, five hundred million, one hundred two thousand, four hundred twenty-one".