51512522534 has 32 divisors (see below), whose sum is σ = 85337591040. Its totient is φ = 23125888800.

The previous prime is 51512522533. The next prime is 51512522569. The reversal of 51512522534 is 43522521515.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51512522494 and 51512522503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51512522533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828824 + ... + 888804.

It is an arithmetic number, because the mean of its divisors is an integer number (2666799720).

Almost surely, 2^51512522534 is an apocalyptic number.

51512522534 is a deficient number, since it is larger than the sum of its proper divisors (33825068506).

51512522534 is a wasteful number, since it uses less digits than its factorization.

51512522534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60476.

The product of its digits is 60000, while the sum is 35.

The spelling of 51512522534 in words is "fifty-one billion, five hundred twelve million, five hundred twenty-two thousand, five hundred thirty-four".