651252 has 24 divisors (see below), whose sum is σ = 1736896. Its totient is φ = 186048.

The previous prime is 651251. The next prime is 651257. The reversal of 651252 is 252156.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 651252.

It is not an unprimeable number, because it can be changed into a prime (651251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793 + ... + 3960.

2⁶⁵¹²⁵² is an apocalyptic number.

It is an amenable number.

651252 is an abundant number, since it is smaller than the sum of its proper divisors (1085644).

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

651252 is a wasteful number, since it uses less digits than its factorization.

651252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767 (or 7765 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 651252 is about 807.0018587339. The cubic root of 651252 is about 86.6794918561.

It can be divided in two parts, 651 and 252, that added together give a triangular number (903 = T₄₂).

The spelling of 651252 in words is "six hundred fifty-one thousand, two hundred fifty-two".