651603252 has 48 divisors (see below), whose sum is σ = 1637672960. Its totient is φ = 200981088.

The previous prime is 651603247. The next prime is 651603259. The reversal of 651603252 is 252306156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651603259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23428 + ... + 43035.

Almost surely, 2^651603252 is an apocalyptic number.

It is an amenable number.

651603252 is an abundant number, since it is smaller than the sum of its proper divisors (986069708).

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

651603252 is a wasteful number, since it uses less digits than its factorization.

651603252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66532 (or 66530 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 651603252 is about 25526.5205619567. The cubic root of 651603252 is about 866.9507254928.

The spelling of 651603252 in words is "six hundred fifty-one million, six hundred three thousand, two hundred fifty-two".