25254452454 has 64 divisors (see below), whose sum is σ = 63021404160. Its totient is φ = 6554466720.

The previous prime is 25254452441. The next prime is 25254452501. The reversal of 25254452454 is 45425445252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588657 + ... + 630099.

It is an arithmetic number, because the mean of its divisors is an integer number (984709440).

Almost surely, 2^25254452454 is an apocalyptic number.

25254452454 is an abundant number, since it is smaller than the sum of its proper divisors (37766951706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25254452454 is a wasteful number, since it uses less digits than its factorization.

25254452454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42785.

The product of its digits is 1280000, while the sum is 42.

The spelling of 25254452454 in words is "twenty-five billion, two hundred fifty-four million, four hundred fifty-two thousand, four hundred fifty-four".