525455622420 has 96 divisors (see below), whose sum is σ = 1590966655488. Its totient is φ = 129073108992.

The previous prime is 525455622383. The next prime is 525455622479. The reversal of 525455622420 is 24226554525.

It is a super-2 number, since 2×525455622420² (a number of 24 digits) contains 22 as substring.

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, 5432407 + ... + 5528286.

It is an arithmetic number, because the mean of its divisors is an integer number (16572569328).

Almost surely, 2^525455622420 is an apocalyptic number.

It is an amenable number.

525455622420 is an abundant number, since it is smaller than the sum of its proper divisors (1065511033068).

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

525455622420 is a wasteful number, since it uses less digits than its factorization.

525455622420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10960769 (or 10960767 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 525455622420 in words is "five hundred twenty-five billion, four hundred fifty-five million, six hundred twenty-two thousand, four hundred twenty".