652421250 has 160 divisors (see below), whose sum is σ = 1952375040. Its totient is φ = 160488000.

The previous prime is 652421239. The next prime is 652421279. The reversal of 652421250 is 52124256.

652421250 is a `hidden beast` number, since 652 + 4 + 2 + 1 + 2 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 438007 + ... + 439493.

It is an arithmetic number, because the mean of its divisors is an integer number (12202344).

Almost surely, 2^652421250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652421250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976187520).

652421250 is an abundant number, since it is smaller than the sum of its proper divisors (1299953790).

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

652421250 is a wasteful number, since it uses less digits than its factorization.

652421250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 652421250 is about 25542.5380493012. The cubic root of 652421250 is about 867.3133528082.

The spelling of 652421250 in words is "six hundred fifty-two million, four hundred twenty-one thousand, two hundred fifty".