51634894 has 8 divisors (see below), whose sum is σ = 81528840. Its totient is φ = 24458616.

The previous prime is 51634861. The next prime is 51634901. The reversal of 51634894 is 49843615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679369 + ... + 679444.

It is an arithmetic number, because the mean of its divisors is an integer number (10191105).

Almost surely, 2^51634894 is an apocalyptic number.

51634894 is a deficient number, since it is larger than the sum of its proper divisors (29893946).

51634894 is a wasteful number, since it uses less digits than its factorization.

51634894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358834.

The product of its digits is 103680, while the sum is 40.

The square root of 51634894 is about 7185.7424111918. The cubic root of 51634894 is about 372.3754976316.

The spelling of 51634894 in words is "fifty-one million, six hundred thirty-four thousand, eight hundred ninety-four".