25250252502513 has 16 divisors (see below), whose sum is σ = 35495114086400. Its totient is φ = 15922254453840.

The previous prime is 25250252502479. The next prime is 25250252502523. The reversal of 25250252502513 is 31520525205252.

It is not a de Polignac number, because 25250252502513 - 2¹² = 25250252498417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25250252502523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350983753 + ... + 351055686.

It is an arithmetic number, because the mean of its divisors is an integer number (2218444630400).

Almost surely, 2^{25250252502513} is an apocalyptic number.

It is an amenable number.

25250252502513 is a deficient number, since it is larger than the sum of its proper divisors (10244861583887).

25250252502513 is a wasteful number, since it uses less digits than its factorization.

25250252502513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702040092.

The product of its (nonzero) digits is 300000, while the sum is 39.

Adding to 25250252502513 its reverse (31520525205252), we get a palindrome (56770777707765).

The spelling of 25250252502513 in words is "twenty-five trillion, two hundred fifty billion, two hundred fifty-two million, five hundred two thousand, five hundred thirteen".