625521136050 has 72 divisors (see below), whose sum is σ = 1725987555396. Its totient is φ = 162297371520.

The previous prime is 625521136043. The next prime is 625521136073. The reversal of 625521136050 is 50631125526.

625521136050 is a `hidden beast` number, since 6 + 25 + 5 + 21 + 1 + 3 + 605 + 0 = 666.

625521136050 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 349766970921 + 275754165129 = 591411^2 + 525123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 625521135996 and 625521136014.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18767769 + ... + 18801068.

Almost surely, 2^625521136050 is an apocalyptic number.

625521136050 is an abundant number, since it is smaller than the sum of its proper divisors (1100466419346).

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

625521136050 is a wasteful number, since it uses less digits than its factorization.

625521136050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37568892 (or 37568884 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 625521136050 in words is "six hundred twenty-five billion, five hundred twenty-one million, one hundred thirty-six thousand, fifty".