51610155104 has 24 divisors (see below), whose sum is σ = 101738987280. Its totient is φ = 25771682176.

The previous prime is 51610155073. The next prime is 51610155127. The reversal of 51610155104 is 40155101615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018484 + ... + 1067955.

It is an arithmetic number, because the mean of its divisors is an integer number (4239124470).

Almost surely, 2^51610155104 is an apocalyptic number.

It is an amenable number.

51610155104 is a deficient number, since it is larger than the sum of its proper divisors (50128832176).

51610155104 is a wasteful number, since it uses less digits than its factorization.

51610155104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087222 (or 2087214 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 51610155104 its reverse (40155101615), we get a palindrome (91765256719).

The spelling of 51610155104 in words is "fifty-one billion, six hundred ten million, one hundred fifty-five thousand, one hundred four".