2521630131 has 8 divisors (see below), whose sum is σ = 3425610960. Its totient is φ = 1649368032.

The previous prime is 2521630103. The next prime is 2521630169. The reversal of 2521630131 is 1310361252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521630131 - 2⁵ = 2521630099 is a prime.

It is a super-2 number, since 2×2521630131² = 12717237035134154322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2521630931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7929496 + ... + 7929813.

It is an arithmetic number, because the mean of its divisors is an integer number (428201370).

Almost surely, 2^2521630131 is an apocalyptic number.

2521630131 is a deficient number, since it is larger than the sum of its proper divisors (903980829).

2521630131 is a wasteful number, since it uses less digits than its factorization.

2521630131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15859365.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2521630131 is about 50215.8354605397. The cubic root of 2521630131 is about 1361.1117874954. Note that the first 3 decimals are identical.

Adding to 2521630131 its reverse (1310361252), we get a palindrome (3831991383).

The spelling of 2521630131 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, one hundred thirty-one".