51742473 has 16 divisors (see below), whose sum is σ = 70358016. Its totient is φ = 33816960.

The previous prime is 51742463. The next prime is 51742487. The reversal of 51742473 is 37424715.

It is not a de Polignac number, because 51742473 - 2⁹ = 51741961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51742403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41211 + ... + 42447.

It is an arithmetic number, because the mean of its divisors is an integer number (4397376).

Almost surely, 2^51742473 is an apocalyptic number.

It is an amenable number.

51742473 is a deficient number, since it is larger than the sum of its proper divisors (18615543).

51742473 is a wasteful number, since it uses less digits than its factorization.

51742473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its digits is 23520, while the sum is 33.

The square root of 51742473 is about 7193.2241032794. The cubic root of 51742473 is about 372.6339274891.

The spelling of 51742473 in words is "fifty-one million, seven hundred forty-two thousand, four hundred seventy-three".