51844474 has 16 divisors (see below), whose sum is σ = 87130656. Its totient is φ = 22928400.

The previous prime is 51844469. The next prime is 51844501. The reversal of 51844474 is 47444815.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31032 + ... + 32659.

It is an arithmetic number, because the mean of its divisors is an integer number (5445666).

Almost surely, 2^51844474 is an apocalyptic number.

51844474 is a deficient number, since it is larger than the sum of its proper divisors (35286182).

51844474 is a wasteful number, since it uses less digits than its factorization.

51844474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63741.

The product of its digits is 71680, while the sum is 37.

The square root of 51844474 is about 7200.3106877412. The cubic root of 51844474 is about 372.8786270712.

The spelling of 51844474 in words is "fifty-one million, eight hundred forty-four thousand, four hundred seventy-four".