25345451240454 has 64 divisors (see below), whose sum is σ = 51662689947648. Its totient is φ = 8287782854400.

The previous prime is 25345451240399. The next prime is 25345451240471. The reversal of 25345451240454 is 45404215454352.

It is a super-2 number, since 2×25345451240454² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606750589 + ... + 606792359.

It is an arithmetic number, because the mean of its divisors is an integer number (807229530432).

Almost surely, 2^{25345451240454} is an apocalyptic number.

25345451240454 is an abundant number, since it is smaller than the sum of its proper divisors (26317238707194).

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

25345451240454 is a wasteful number, since it uses less digits than its factorization.

25345451240454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49293.

The product of its (nonzero) digits is 7680000, while the sum is 48.

The spelling of 25345451240454 in words is "twenty-five trillion, three hundred forty-five billion, four hundred fifty-one million, two hundred forty thousand, four hundred fifty-four".