51362494 has 4 divisors (see below), whose sum is σ = 77043744. Its totient is φ = 25681246.

The previous prime is 51362477. The next prime is 51362501. The reversal of 51362494 is 49426315.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12840622 + ... + 12840625.

It is an arithmetic number, because the mean of its divisors is an integer number (19260936).

Almost surely, 2^51362494 is an apocalyptic number.

51362494 is a deficient number, since it is larger than the sum of its proper divisors (25681250).

51362494 is a wasteful number, since it uses less digits than its factorization.

51362494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25681249.

The product of its digits is 25920, while the sum is 34.

The square root of 51362494 is about 7166.7631466374. The cubic root of 51362494 is about 371.7195201457.

The spelling of 51362494 in words is "fifty-one million, three hundred sixty-two thousand, four hundred ninety-four".