650523988 has 12 divisors (see below), whose sum is σ = 1139189940. Its totient is φ = 325041152.

The previous prime is 650523983. The next prime is 650523997. The reversal of 650523988 is 889325056.

It can be written as a sum of positive squares in 2 ways, for example, as 414041104 + 236482884 = 20348^2 + 15378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650523983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48493 + ... + 60436.

It is an arithmetic number, because the mean of its divisors is an integer number (94932495).

Almost surely, 2^650523988 is an apocalyptic number.

It is an amenable number.

650523988 is a deficient number, since it is larger than the sum of its proper divisors (488665952).

650523988 is a wasteful number, since it uses less digits than its factorization.

650523988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110426 (or 110424 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 650523988 is about 25505.3717479279. The cubic root of 650523988 is about 866.4718114860.

It can be divided in two parts, 650523 and 988, that added together give a triangular number (651511 = T₁₁₄₁).

The spelling of 650523988 in words is "six hundred fifty million, five hundred twenty-three thousand, nine hundred eighty-eight".