51530421255510 has 32 divisors (see below), whose sum is σ = 123685294289760. Its totient is φ = 13740080859648.

The previous prime is 51530421255499. The next prime is 51530421255553. The reversal of 51530421255510 is 1555212403515.

51530421255510 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84993427 + ... + 85597566.

It is an arithmetic number, because the mean of its divisors is an integer number (3865165446555).

Almost surely, 2^{51530421255510} is an apocalyptic number.

51530421255510 is an abundant number, since it is smaller than the sum of its proper divisors (72154873034250).

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

51530421255510 is a wasteful number, since it uses less digits than its factorization.

51530421255510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170601072.

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 51530421255510 in words is "fifty-one trillion, five hundred thirty billion, four hundred twenty-one million, two hundred fifty-five thousand, five hundred ten".