51534534 has 16 divisors (see below), whose sum is σ = 104311872. Its totient is φ = 16971048.

The previous prime is 51534523. The next prime is 51534541. The reversal of 51534534 is 43543515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51244 + ... + 52239.

It is an arithmetic number, because the mean of its divisors is an integer number (6519492).

Almost surely, 2^51534534 is an apocalyptic number.

51534534 is an abundant number, since it is smaller than the sum of its proper divisors (52777338).

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

51534534 is a wasteful number, since it uses less digits than its factorization.

51534534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103571.

The product of its digits is 18000, while the sum is 30.

The square root of 51534534 is about 7178.7557417703. The cubic root of 51534534 is about 372.1340856676.

The spelling of 51534534 in words is "fifty-one million, five hundred thirty-four thousand, five hundred thirty-four".