2521373252431 has 8 divisors (see below), whose sum is σ = 2752436293200. Its totient is φ = 2290618093440.

The previous prime is 2521373252347. The next prime is 2521373252473. The reversal of 2521373252431 is 1342523731252.

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

It is a cyclic number.

It is not a de Polignac number, because 2521373252431 - 2¹³ = 2521373244239 is a prime.

It is a super-2 number, since 2×2521373252431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521373253431) 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, 76953316 + ... + 76986073.

It is an arithmetic number, because the mean of its divisors is an integer number (344054536650).

Almost surely, 2^{2521373252431} is an apocalyptic number.

2521373252431 is a deficient number, since it is larger than the sum of its proper divisors (231063040769).

2521373252431 is a wasteful number, since it uses less digits than its factorization.

2521373252431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153940889.

The product of its digits is 302400, while the sum is 40.

Adding to 2521373252431 its reverse (1342523731252), we get a palindrome (3863896983683).

The spelling of 2521373252431 in words is "two trillion, five hundred twenty-one billion, three hundred seventy-three million, two hundred fifty-two thousand, four hundred thirty-one".