25493942484 has 24 divisors (see below), whose sum is σ = 66095406720. Its totient is φ = 8497980792.

The previous prime is 25493942473. The next prime is 25493942489. The reversal of 25493942484 is 48424939452.

25493942484 is a `hidden beast` number, since 2 + 5 + 4 + 9 + 394 + 248 + 4 = 666.

It is a super-2 number, since 2×25493942484² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 25493942484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25493942489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118027404 + ... + 118027619.

It is an arithmetic number, because the mean of its divisors is an integer number (2753975280).

Almost surely, 2^25493942484 is an apocalyptic number.

It is an amenable number.

25493942484 is an abundant number, since it is smaller than the sum of its proper divisors (40601464236).

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

25493942484 is a wasteful number, since it uses less digits than its factorization.

25493942484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236055036 (or 236055028 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 25493942484 in words is "twenty-five billion, four hundred ninety-three million, nine hundred forty-two thousand, four hundred eighty-four".