635771052 has 48 divisors (see below), whose sum is σ = 1883768320. Its totient is φ = 181648656.

The previous prime is 635771047. The next prime is 635771069. The reversal of 635771052 is 250177536.

635771052 is a `hidden beast` number, since 635 + 7 + 7 + 10 + 5 + 2 = 666.

It is a super-2 number, since 2×635771052² = 808409661122373408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 635770998 and 635771016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419728 + ... + 421239.

Almost surely, 2^635771052 is an apocalyptic number.

It is an amenable number.

635771052 is an abundant number, since it is smaller than the sum of its proper divisors (1247997268).

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

635771052 is a wasteful number, since it uses less digits than its factorization.

635771052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840987 (or 840979 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 635771052 is about 25214.5008278966. The cubic root of 635771052 is about 859.8715564440.

The spelling of 635771052 in words is "six hundred thirty-five million, seven hundred seventy-one thousand, fifty-two".