25450822458 has 16 divisors (see below), whose sum is σ = 56557383360. Its totient is φ = 8483607468.

The previous prime is 25450822457. The next prime is 25450822459. The reversal of 25450822458 is 85422805452.

25450822458 is a `hidden beast` number, since 2 + 545 + 0 + 82 + 24 + 5 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (25450822457) and next prime (25450822459).

It is not an unprimeable number, because it can be changed into a prime (25450822457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235655710 + ... + 235655817.

It is an arithmetic number, because the mean of its divisors is an integer number (3534836460).

Almost surely, 2^25450822458 is an apocalyptic number.

25450822458 is an abundant number, since it is smaller than the sum of its proper divisors (31106560902).

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

25450822458 is a wasteful number, since it uses less digits than its factorization.

25450822458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471311538 (or 471311532 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 45.

The spelling of 25450822458 in words is "twenty-five billion, four hundred fifty million, eight hundred twenty-two thousand, four hundred fifty-eight".