51790615 has 8 divisors (see below), whose sum is σ = 64153728. Its totient is φ = 40095840.

The previous prime is 51790603. The next prime is 51790621. The reversal of 51790615 is 51609715.

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

It is not a de Polignac number, because 51790615 - 2¹⁵ = 51757847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166912 + ... + 167221.

It is an arithmetic number, because the mean of its divisors is an integer number (8019216).

Almost surely, 2^51790615 is an apocalyptic number.

51790615 is a deficient number, since it is larger than the sum of its proper divisors (12363113).

51790615 is a wasteful number, since it uses less digits than its factorization.

51790615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334169.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 51790615 is about 7196.5696689464. The cubic root of 51790615 is about 372.7494597955.

The spelling of 51790615 in words is "fifty-one million, seven hundred ninety thousand, six hundred fifteen".