51567560 has 64 divisors (see below), whose sum is σ = 127370880. Its totient is φ = 18634240.

The previous prime is 51567553. The next prime is 51567589. The reversal of 51567560 is 6576515.

51567560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51567560.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102269 + ... + 102771.

It is an arithmetic number, because the mean of its divisors is an integer number (1990170).

Almost surely, 2^51567560 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 51567560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

51567560 is an abundant number, since it is smaller than the sum of its proper divisors (75803320).

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

51567560 is a wasteful number, since it uses less digits than its factorization.

51567560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 51567560 is about 7181.0556327047. The cubic root of 51567560 is about 372.2135629612.

The spelling of 51567560 in words is "fifty-one million, five hundred sixty-seven thousand, five hundred sixty".