51528374 has 8 divisors (see below), whose sum is σ = 77413968. Its totient is φ = 25723720.

The previous prime is 51528359. The next prime is 51528391. The reversal of 51528374 is 47382515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18617 + ... + 21204.

It is an arithmetic number, because the mean of its divisors is an integer number (9676746).

Almost surely, 2^51528374 is an apocalyptic number.

51528374 is a deficient number, since it is larger than the sum of its proper divisors (25885594).

51528374 is a wasteful number, since it uses less digits than its factorization.

51528374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40470.

The product of its digits is 33600, while the sum is 35.

The square root of 51528374 is about 7178.3266852380. The cubic root of 51528374 is about 372.1192578286.

The spelling of 51528374 in words is "fifty-one million, five hundred twenty-eight thousand, three hundred seventy-four".