51504210534 has 128 divisors (see below), whose sum is σ = 122120773632. Its totient is φ = 14176592640.

The previous prime is 51504210529. The next prime is 51504210547. The reversal of 51504210534 is 43501240515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60097834 + ... + 60098690.

It is an arithmetic number, because the mean of its divisors is an integer number (954068544).

Almost surely, 2^51504210534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51504210534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61060386816).

51504210534 is an abundant number, since it is smaller than the sum of its proper divisors (70616563098).

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

51504210534 is a wasteful number, since it uses less digits than its factorization.

51504210534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 51504210534 in words is "fifty-one billion, five hundred four million, two hundred ten thousand, five hundred thirty-four".