51373473 has 16 divisors (see below), whose sum is σ = 76345920. Its totient is φ = 30537216.

The previous prime is 51373459. The next prime is 51373477. The reversal of 51373473 is 37437315.

It is a happy number.

It is not a de Polignac number, because 51373473 - 2⁴ = 51373457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51373477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25540 + ... + 27477.

It is an arithmetic number, because the mean of its divisors is an integer number (4771620).

Almost surely, 2^51373473 is an apocalyptic number.

It is an amenable number.

51373473 is a deficient number, since it is larger than the sum of its proper divisors (24972447).

51373473 is a wasteful number, since it uses less digits than its factorization.

51373473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53056.

The product of its digits is 26460, while the sum is 33.

The square root of 51373473 is about 7167.5290721419. The cubic root of 51373473 is about 371.7460039184.

The spelling of 51373473 in words is "fifty-one million, three hundred seventy-three thousand, four hundred seventy-three".