51023153215 has 8 divisors (see below), whose sum is σ = 61263831600. Its totient is φ = 40794490752.

The previous prime is 51023153183. The next prime is 51023153257. The reversal of 51023153215 is 51235132015.

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

It is a cyclic number.

It is not a de Polignac number, because 51023153215 - 2⁵ = 51023153183 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, 2994634 + ... + 3011623.

It is an arithmetic number, because the mean of its divisors is an integer number (7657978950).

Almost surely, 2^51023153215 is an apocalyptic number.

51023153215 is a deficient number, since it is larger than the sum of its proper divisors (10240678385).

51023153215 is a wasteful number, since it uses less digits than its factorization.

51023153215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6007961.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 51023153215 in words is "fifty-one billion, twenty-three million, one hundred fifty-three thousand, two hundred fifteen".