53979122450 has 162 divisors, whose sum is σ = 115415423487. Its totient is φ = 18767918400.

The previous prime is 53979122423. The next prime is 53979122489. The reversal of 53979122450 is 5422197935.

It can be written as a sum of positive squares in 5 ways, for example, as 20704619881 + 33274502569 = 143891^2 + 182413^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=164285.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53979122395 and 53979122404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 524069099 + ... + 524069201.

Almost surely, 2^53979122450 is an apocalyptic number.

53979122450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53979122450 is an abundant number, since it is smaller than the sum of its proper divisors (61436301037).

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

53979122450 is a wasteful number, since it uses less digits than its factorization.

53979122450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 53979122450 in words is "fifty-three billion, nine hundred seventy-nine million, one hundred twenty-two thousand, four hundred fifty".