51551150515 has 8 divisors (see below), whose sum is σ = 62428916880. Its totient is φ = 40862562912.

The previous prime is 51551150513. The next prime is 51551150537. The reversal of 51551150515 is 51505115515.

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 51551150515 - 2¹ = 51551150513 is a prime.

It is a super-4 number, since 4×51551150515⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51551150513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47294089 + ... + 47295178.

It is an arithmetic number, because the mean of its divisors is an integer number (7803614610).

Almost surely, 2^51551150515 is an apocalyptic number.

51551150515 is a deficient number, since it is larger than the sum of its proper divisors (10877766365).

51551150515 is a wasteful number, since it uses less digits than its factorization.

51551150515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94589381.

The product of its (nonzero) digits is 15625, while the sum is 34.

The spelling of 51551150515 in words is "fifty-one billion, five hundred fifty-one million, one hundred fifty thousand, five hundred fifteen".