51398294 has 8 divisors (see below), whose sum is σ = 77861088. Its totient is φ = 25444600.

The previous prime is 51398267. The next prime is 51398299. The reversal of 51398294 is 49289315.

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

It is a super-2 number, since 2×51398294² = 5283569252220872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51398299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127022 + ... + 127425.

It is an arithmetic number, because the mean of its divisors is an integer number (9732636).

Almost surely, 2^51398294 is an apocalyptic number.

51398294 is a deficient number, since it is larger than the sum of its proper divisors (26462794).

51398294 is a wasteful number, since it uses less digits than its factorization.

51398294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254550.

The product of its digits is 77760, while the sum is 41.

The square root of 51398294 is about 7169.2603523655. The cubic root of 51398294 is about 371.8058637475.

The spelling of 51398294 in words is "fifty-one million, three hundred ninety-eight thousand, two hundred ninety-four".