51526656 has 66 divisors (see below), whose sum is σ = 148808712. Its totient is φ = 17172480.

The previous prime is 51526633. The next prime is 51526663. The reversal of 51526656 is 65662515.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51526656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6421 + ... + 12011.

Almost surely, 2^51526656 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 51526656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74404356).

51526656 is an abundant number, since it is smaller than the sum of its proper divisors (97282056).

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

51526656 is a wasteful number, since it uses less digits than its factorization.

51526656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5596 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 51526656 is about 7178.2070184692. The cubic root of 51526656 is about 372.1151221914.

The spelling of 51526656 in words is "fifty-one million, five hundred twenty-six thousand, six hundred fifty-six".