25020255513 has 16 divisors (see below), whose sum is σ = 36405282816. Its totient is φ = 15158714640.

The previous prime is 25020255511. The next prime is 25020255541. The reversal of 25020255513 is 31555202052.

It is not a de Polignac number, because 25020255513 - 2¹ = 25020255511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25020255511) 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, 25645 + ... + 225162.

It is an arithmetic number, because the mean of its divisors is an integer number (2275330176).

Almost surely, 2^25020255513 is an apocalyptic number.

It is an amenable number.

25020255513 is a deficient number, since it is larger than the sum of its proper divisors (11385027303).

25020255513 is a wasteful number, since it uses less digits than its factorization.

25020255513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253844.

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 25020255513 its reverse (31555202052), we get a palindrome (56575457565).

The spelling of 25020255513 in words is "twenty-five billion, twenty million, two hundred fifty-five thousand, five hundred thirteen".