51222031045 has 16 divisors (see below), whose sum is σ = 61582279680. Its totient is φ = 40900464000.

The previous prime is 51222031039. The next prime is 51222031061. The reversal of 51222031045 is 54013022215.

51222031045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-51222031045 is a prime.

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, 10343320 + ... + 10348270.

It is an arithmetic number, because the mean of its divisors is an integer number (3848892480).

Almost surely, 2^51222031045 is an apocalyptic number.

It is an amenable number.

51222031045 is a deficient number, since it is larger than the sum of its proper divisors (10360248635).

51222031045 is a wasteful number, since it uses less digits than its factorization.

51222031045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8436.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 51222031045 in words is "fifty-one billion, two hundred twenty-two million, thirty-one thousand, forty-five".