25012122455 has 24 divisors (see below), whose sum is σ = 31773698880. Its totient is φ = 18897278400.

The previous prime is 25012122431. The next prime is 25012122497. The reversal of 25012122455 is 55422121052.

It is a happy number.

It is not a de Polignac number, because 25012122455 - 2¹⁶ = 25012056919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149105 + ... + 268805.

It is an arithmetic number, because the mean of its divisors is an integer number (1323904120).

Almost surely, 2^25012122455 is an apocalyptic number.

25012122455 is a deficient number, since it is larger than the sum of its proper divisors (6761576425).

25012122455 is a wasteful number, since it uses less digits than its factorization.

25012122455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119831 (or 119808 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25012122455 in words is "twenty-five billion, twelve million, one hundred twenty-two thousand, four hundred fifty-five".