51299025561015 has 8 divisors (see below), whose sum is σ = 82078440897648. Its totient is φ = 27359480299200.

The previous prime is 51299025560971. The next prime is 51299025561029. The reversal of 51299025561015 is 51016552099215.

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

It is not a de Polignac number, because 51299025561015 - 2¹³ = 51299025552823 is a prime.

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, 1709967518686 + ... + 1709967518715.

It is an arithmetic number, because the mean of its divisors is an integer number (10259805112206).

Almost surely, 2^{51299025561015} is an apocalyptic number.

51299025561015 is a deficient number, since it is larger than the sum of its proper divisors (30779415336633).

51299025561015 is a wasteful number, since it uses less digits than its factorization.

51299025561015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419935037409.

The product of its (nonzero) digits is 1215000, while the sum is 51.

The spelling of 51299025561015 in words is "fifty-one trillion, two hundred ninety-nine billion, twenty-five million, five hundred sixty-one thousand, fifteen".