52120400455 has 4 divisors (see below), whose sum is σ = 62544480552. Its totient is φ = 41696320360.

The previous prime is 52120400447. The next prime is 52120400467. The reversal of 52120400455 is 55400402125.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52120400455 - 2³ = 52120400447 is a prime.

It is a super-2 number, since 2×52120400455² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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, 5212040041 + ... + 5212040050.

It is an arithmetic number, because the mean of its divisors is an integer number (15636120138).

Almost surely, 2^52120400455 is an apocalyptic number.

52120400455 is a deficient number, since it is larger than the sum of its proper divisors (10424080097).

52120400455 is a wasteful number, since it uses less digits than its factorization.

52120400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10424080096.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 52120400455 in words is "fifty-two billion, one hundred twenty million, four hundred thousand, four hundred fifty-five".