51510534 has 16 divisors (see below), whose sum is σ = 103265280. Its totient is φ = 17129480.

The previous prime is 51510533. The next prime is 51510581. The reversal of 51510534 is 43501515.

51510534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51510534² = 5306670225930312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51510533) 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 7 ways as a sum of consecutive naturals, for example, 7374 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (6454080).

Almost surely, 2^51510534 is an apocalyptic number.

51510534 is an abundant number, since it is smaller than the sum of its proper divisors (51754746).

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

51510534 is a wasteful number, since it uses less digits than its factorization.

51510534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20355.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51510534 is about 7177.0839482341. The cubic root of 51510534 is about 372.0763081983.

The spelling of 51510534 in words is "fifty-one million, five hundred ten thousand, five hundred thirty-four".