51397462 has 8 divisors (see below), whose sum is σ = 77186736. Its totient is φ = 25668552.

The previous prime is 51397459. The next prime is 51397469. The reversal of 51397462 is 26479315.

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 (51397469) 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, 12898 + ... + 16405.

It is an arithmetic number, because the mean of its divisors is an integer number (9648342).

Almost surely, 2^51397462 is an apocalyptic number.

51397462 is a deficient number, since it is larger than the sum of its proper divisors (25789274).

51397462 is a wasteful number, since it uses less digits than its factorization.

51397462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30182.

The product of its digits is 45360, while the sum is 37.

The square root of 51397462 is about 7169.2023266191. The cubic root of 51397462 is about 371.8038575581.

The spelling of 51397462 in words is "fifty-one million, three hundred ninety-seven thousand, four hundred sixty-two".