51426238 has 8 divisors (see below), whose sum is σ = 77702832. Its totient is φ = 25525296.

The previous prime is 51426211. The next prime is 51426239. The reversal of 51426238 is 83262415.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51426239) 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, 93570 + ... + 94117.

It is an arithmetic number, because the mean of its divisors is an integer number (9712854).

Almost surely, 2^51426238 is an apocalyptic number.

51426238 is a deficient number, since it is larger than the sum of its proper divisors (26276594).

51426238 is a wasteful number, since it uses less digits than its factorization.

51426238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187826.

The product of its digits is 11520, while the sum is 31.

The square root of 51426238 is about 7171.2089636267. The cubic root of 51426238 is about 371.8732321362.

The spelling of 51426238 in words is "fifty-one million, four hundred twenty-six thousand, two hundred thirty-eight".