51246562 has 4 divisors (see below), whose sum is σ = 76869846. Its totient is φ = 25623280.

The previous prime is 51246557. The next prime is 51246563. The reversal of 51246562 is 26564215.

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., 30261001 + 20985561 = 5501^2 + 4581^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51246563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12811639 + ... + 12811642.

Almost surely, 2^51246562 is an apocalyptic number.

51246562 is a deficient number, since it is larger than the sum of its proper divisors (25623284).

51246562 is a wasteful number, since it uses less digits than its factorization.

51246562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25623283.

The product of its digits is 14400, while the sum is 31.

The square root of 51246562 is about 7158.6704072754. The cubic root of 51246562 is about 371.4396359482.

It can be divided in two parts, 512 and 46562, that added together give a palindrome (47074).

The spelling of 51246562 in words is "fifty-one million, two hundred forty-six thousand, five hundred sixty-two".