51354325461 has 32 divisors (see below), whose sum is σ = 72233233920. Its totient is φ = 32403571200.

The previous prime is 51354325447. The next prime is 51354325471. The reversal of 51354325461 is 16452345315.

It is a happy number.

It is not a de Polignac number, because 51354325461 - 2⁶ = 51354325397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51354325471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6086916 + ... + 6095346.

It is an arithmetic number, because the mean of its divisors is an integer number (2257288560).

Almost surely, 2^51354325461 is an apocalyptic number.

It is an amenable number.

51354325461 is a deficient number, since it is larger than the sum of its proper divisors (20878908459).

51354325461 is a wasteful number, since it uses less digits than its factorization.

51354325461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9837.

The product of its digits is 216000, while the sum is 39.

The spelling of 51354325461 in words is "fifty-one billion, three hundred fifty-four million, three hundred twenty-five thousand, four hundred sixty-one".