51232473 has 32 divisors (see below), whose sum is σ = 79920000. Its totient is φ = 32389056.

The previous prime is 51232471. The next prime is 51232483. The reversal of 51232473 is 37423215.

It is not a de Polignac number, because 51232473 - 2¹ = 51232471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51232471) 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, 45643 + ... + 46751.

It is an arithmetic number, because the mean of its divisors is an integer number (2497500).

Almost surely, 2^51232473 is an apocalyptic number.

It is an amenable number.

51232473 is a deficient number, since it is larger than the sum of its proper divisors (28687527).

51232473 is a wasteful number, since it uses less digits than its factorization.

51232473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1200 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 51232473 is about 7157.6862881800. The cubic root of 51232473 is about 371.4055933869.

Adding to 51232473 its reverse (37423215), we get a palindrome (88655688).

The spelling of 51232473 in words is "fifty-one million, two hundred thirty-two thousand, four hundred seventy-three".