51497482 has 4 divisors (see below), whose sum is σ = 77246226. Its totient is φ = 25748740.

The previous prime is 51497431. The next prime is 51497497. The reversal of 51497482 is 28479415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40335201 + 11162281 = 6351^2 + 3341^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874369 + ... + 12874372.

Almost surely, 2^51497482 is an apocalyptic number.

51497482 is a deficient number, since it is larger than the sum of its proper divisors (25748744).

51497482 is a wasteful number, since it uses less digits than its factorization.

51497482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748743.

The product of its digits is 80640, while the sum is 40.

The square root of 51497482 is about 7176.1746076862. The cubic root of 51497482 is about 372.0448793505.

The spelling of 51497482 in words is "fifty-one million, four hundred ninety-seven thousand, four hundred eighty-two".