51352705405 has 16 divisors (see below), whose sum is σ = 63990622080. Its totient is φ = 39514689088.

The previous prime is 51352705387. The next prime is 51352705441. The reversal of 51352705405 is 50450725315.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51352705405 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, 635167 + ... + 711436.

It is an arithmetic number, because the mean of its divisors is an integer number (3999413880).

Almost surely, 2^51352705405 is an apocalyptic number.

It is an amenable number.

51352705405 is a deficient number, since it is larger than the sum of its proper divisors (12637916675).

51352705405 is a wasteful number, since it uses less digits than its factorization.

51352705405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346900.

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 51352705405 in words is "fifty-one billion, three hundred fifty-two million, seven hundred five thousand, four hundred five".