51210612054 has 24 divisors (see below), whose sum is σ = 126807230160. Its totient is φ = 14631603408.

The previous prime is 51210612053. The next prime is 51210612059. The reversal of 51210612054 is 45021601215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51210612053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203216589 + ... + 203216840.

It is an arithmetic number, because the mean of its divisors is an integer number (5283634590).

Almost surely, 2^51210612054 is an apocalyptic number.

51210612054 is an abundant number, since it is smaller than the sum of its proper divisors (75596618106).

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

51210612054 is a wasteful number, since it uses less digits than its factorization.

51210612054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406433444 (or 406433441 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 51210612054 in words is "fifty-one billion, two hundred ten million, six hundred twelve thousand, fifty-four".