627640052 has 24 divisors (see below), whose sum is σ = 1195064136. Its totient is φ = 286691328.

The previous prime is 627640033. The next prime is 627640073. The reversal of 627640052 is 250046726.

It can be written as a sum of positive squares in 4 ways, for example, as 143904016 + 483736036 = 11996^2 + 21994^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57173 + ... + 67260.

It is an arithmetic number, because the mean of its divisors is an integer number (49794339).

Almost surely, 2^627640052 is an apocalyptic number.

It is an amenable number.

627640052 is a deficient number, since it is larger than the sum of its proper divisors (567424084).

627640052 is a wasteful number, since it uses less digits than its factorization.

627640052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124547 (or 124545 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 627640052 is about 25052.7453984588. The cubic root of 627640052 is about 856.1901290335.

Adding to 627640052 its reverse (250046726), we get a palindrome (877686778).

The spelling of 627640052 in words is "six hundred twenty-seven million, six hundred forty thousand, fifty-two".