51382634 has 4 divisors (see below), whose sum is σ = 77073954. Its totient is φ = 25691316.

The previous prime is 51382633. The next prime is 51382651. The reversal of 51382634 is 43628315.

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., 30195025 + 21187609 = 5495^2 + 4603^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51382634.

It is not an unprimeable number, because it can be changed into a prime (51382633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12845657 + ... + 12845660.

Almost surely, 2^51382634 is an apocalyptic number.

51382634 is a deficient number, since it is larger than the sum of its proper divisors (25691320).

51382634 is a wasteful number, since it uses less digits than its factorization.

51382634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25691319.

The product of its digits is 17280, while the sum is 32.

The square root of 51382634 is about 7168.1681062877. The cubic root of 51382634 is about 371.7680993861.

The spelling of 51382634 in words is "fifty-one million, three hundred eighty-two thousand, six hundred thirty-four".