51354230015 has 32 divisors (see below), whose sum is σ = 70431897600. Its totient is φ = 35604201600.

The previous prime is 51354229987. The next prime is 51354230107. The reversal of 51354230015 is 51003245315.

It is not a de Polignac number, because 51354230015 - 2⁶ = 51354229951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51354230015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110540 + ... + 339009.

It is an arithmetic number, because the mean of its divisors is an integer number (2200996800).

Almost surely, 2^51354230015 is an apocalyptic number.

51354230015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51354230015 is a deficient number, since it is larger than the sum of its proper divisors (19077667585).

51354230015 is a wasteful number, since it uses less digits than its factorization.

51354230015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449663.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 51354230015 in words is "fifty-one billion, three hundred fifty-four million, two hundred thirty thousand, fifteen".