51652664 has 96 divisors (see below), whose sum is σ = 124843680. Its totient is φ = 19869696.

The previous prime is 51652651. The next prime is 51652673. The reversal of 51652664 is 46625615.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153104 + ... + 153440.

It is an arithmetic number, because the mean of its divisors is an integer number (1300455).

Almost surely, 2^51652664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51652664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62421840).

51652664 is an abundant number, since it is smaller than the sum of its proper divisors (73191016).

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

51652664 is a wasteful number, since it uses less digits than its factorization.

51652664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 386 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 51652664 is about 7186.9787811013. The cubic root of 51652664 is about 372.4182100504.

The spelling of 51652664 in words is "fifty-one million, six hundred fifty-two thousand, six hundred sixty-four".