51492278 has 8 divisors (see below), whose sum is σ = 77274000. Its totient is φ = 25734280.

The previous prime is 51492257. The next prime is 51492281. The reversal of 51492278 is 87229415.

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, 1223 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (9659250).

Almost surely, 2^51492278 is an apocalyptic number.

51492278 is a deficient number, since it is larger than the sum of its proper divisors (25781722).

51492278 is a wasteful number, since it uses less digits than its factorization.

51492278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862.

The product of its digits is 40320, while the sum is 38.

The square root of 51492278 is about 7175.8120098007. The cubic root of 51492278 is about 372.0323467845.

The spelling of 51492278 in words is "fifty-one million, four hundred ninety-two thousand, two hundred seventy-eight".