51298694 has 8 divisors (see below), whose sum is σ = 80293680. Its totient is φ = 24534136.

The previous prime is 51298679. The next prime is 51298703. The reversal of 51298694 is 49689215.

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

It is a super-2 number, since 2×51298694² = 5263112012211272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 557549 + ... + 557640.

It is an arithmetic number, because the mean of its divisors is an integer number (10036710).

Almost surely, 2^51298694 is an apocalyptic number.

51298694 is a deficient number, since it is larger than the sum of its proper divisors (28994986).

51298694 is a wasteful number, since it uses less digits than its factorization.

51298694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115214.

The product of its digits is 155520, while the sum is 44.

The square root of 51298694 is about 7162.3106606737. The cubic root of 51298694 is about 371.5655457192.

The spelling of 51298694 in words is "fifty-one million, two hundred ninety-eight thousand, six hundred ninety-four".