25420002452 has 48 divisors (see below), whose sum is σ = 48977332992. Its totient is φ = 11470692480.

The previous prime is 25420002389. The next prime is 25420002463.

25420002452 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2588183 + ... + 2597985.

It is an arithmetic number, because the mean of its divisors is an integer number (1020361104).

Almost surely, 2^25420002452 is an apocalyptic number.

It is an amenable number.

25420002452 is a deficient number, since it is larger than the sum of its proper divisors (23557330540).

25420002452 is a wasteful number, since it uses less digits than its factorization.

25420002452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928 (or 10926 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

It can be divided in two parts, 2542000 and 2452, that added together give a palindrome (2544452).

The spelling of 25420002452 in words is "twenty-five billion, four hundred twenty million, two thousand, four hundred fifty-two".