625404466042554 has 16 divisors (see below), whose sum is σ = 1364518835002080. Its totient is φ = 189516504861360.

The previous prime is 625404466042549. The next prime is 625404466042561. The reversal of 625404466042554 is 455240664404526.

It is a super-2 number, since 2×625404466042554² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625404466042494 and 625404466042503.

It is an unprimeable number.

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, 4737912621469 + ... + 4737912621600.

It is an arithmetic number, because the mean of its divisors is an integer number (85282427187630).

Almost surely, 2^{625404466042554} is an apocalyptic number.

625404466042554 is an abundant number, since it is smaller than the sum of its proper divisors (739114368959526).

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

625404466042554 is a wasteful number, since it uses less digits than its factorization.

625404466042554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475825243085.

The product of its (nonzero) digits is 110592000, while the sum is 57.

The spelling of 625404466042554 in words is "six hundred twenty-five trillion, four hundred four billion, four hundred sixty-six million, forty-two thousand, five hundred fifty-four".