25205312484 has 96 divisors (see below), whose sum is σ = 72456612480. Its totient is φ = 7512739200.

The previous prime is 25205312477. The next prime is 25205312567. The reversal of 25205312484 is 48421350252.

25205312484 is a `hidden beast` number, since 2 + 5 + 20 + 531 + 24 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 101439 + ... + 246374.

It is an arithmetic number, because the mean of its divisors is an integer number (754756380).

Almost surely, 2^25205312484 is an apocalyptic number.

It is an amenable number.

25205312484 is an abundant number, since it is smaller than the sum of its proper divisors (47251299996).

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

25205312484 is a wasteful number, since it uses less digits than its factorization.

25205312484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347898 (or 347890 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 25205312484 in words is "twenty-five billion, two hundred five million, three hundred twelve thousand, four hundred eighty-four".