2501402513 has 4 divisors (see below), whose sum is σ = 2610159168. Its totient is φ = 2392645860.

The previous prime is 2501402509. The next prime is 2501402521. The reversal of 2501402513 is 3152041052.

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 2501402513 - 2² = 2501402509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 108756631 = 2501402513 / (2 + 5 + 0 + 1 + 4 + 0 + 2 + 5 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2501402503) 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, 54378293 + ... + 54378338.

It is an arithmetic number, because the mean of its divisors is an integer number (652539792).

Almost surely, 2^2501402513 is an apocalyptic number.

2501402513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2501402513 is a deficient number, since it is larger than the sum of its proper divisors (108756655).

2501402513 is a wasteful number, since it uses less digits than its factorization.

2501402513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108756654.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2501402513 is about 50014.0231635089. The cubic root of 2501402513 is about 1357.4625612508.

Adding to 2501402513 its reverse (3152041052), we get a palindrome (5653443565).

The spelling of 2501402513 in words is "two billion, five hundred one million, four hundred two thousand, five hundred thirteen".