51526563 has 16 divisors (see below), whose sum is σ = 75067776. Its totient is φ = 31178240.

The previous prime is 51526543. The next prime is 51526571. The reversal of 51526563 is 36562515.

51526563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51526563 - 2⁹ = 51526051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51526543) by changing a digit.

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, 39520 + ... + 40802.

It is an arithmetic number, because the mean of its divisors is an integer number (4691736).

Almost surely, 2^51526563 is an apocalyptic number.

51526563 is a deficient number, since it is larger than the sum of its proper divisors (23541213).

51526563 is a wasteful number, since it uses less digits than its factorization.

51526563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514.

The product of its digits is 27000, while the sum is 33.

The square root of 51526563 is about 7178.2005405255. The cubic root of 51526563 is about 372.1148983155.

The spelling of 51526563 in words is "fifty-one million, five hundred twenty-six thousand, five hundred sixty-three".