51694874 has 16 divisors (see below), whose sum is σ = 96676416. Its totient is φ = 20140800.

The previous prime is 51694873. The next prime is 51694879. The reversal of 51694874 is 47849615.

It is not an unprimeable number, because it can be changed into a prime (51694871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167687 + ... + 167994.

It is an arithmetic number, because the mean of its divisors is an integer number (6042276).

Almost surely, 2^51694874 is an apocalyptic number.

51694874 is a deficient number, since it is larger than the sum of its proper divisors (44981542).

51694874 is a wasteful number, since it uses less digits than its factorization.

51694874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335701.

The product of its digits is 241920, while the sum is 44.

The square root of 51694874 is about 7189.9147421927. The cubic root of 51694874 is about 372.5196278113.

The spelling of 51694874 in words is "fifty-one million, six hundred ninety-four thousand, eight hundred seventy-four".