51420153254455 has 8 divisors (see below), whose sum is σ = 61704277218000. Its totient is φ = 41136060395136.

The previous prime is 51420153254447. The next prime is 51420153254527. The reversal of 51420153254455 is 55445235102415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51420153254455 - 2³ = 51420153254447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3969730 + ... + 10890319.

It is an arithmetic number, because the mean of its divisors is an integer number (7713034652250).

Almost surely, 2^{51420153254455} is an apocalyptic number.

51420153254455 is a deficient number, since it is larger than the sum of its proper divisors (10284123963545).

51420153254455 is a wasteful number, since it uses less digits than its factorization.

51420153254455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552113.

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 51420153254455 in words is "fifty-one trillion, four hundred twenty billion, one hundred fifty-three million, two hundred fifty-four thousand, four hundred fifty-five".