51415501511 has 8 divisors (see below), whose sum is σ = 56092373904. Its totient is φ = 46739085120.

The previous prime is 51415501493. The next prime is 51415501531. The reversal of 51415501511 is 11510551415.

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 51415501511 - 2¹⁸ = 51415239367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415501531) 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, 147941 + ... + 353153.

It is an arithmetic number, because the mean of its divisors is an integer number (7011546738).

Almost surely, 2^51415501511 is an apocalyptic number.

51415501511 is a deficient number, since it is larger than the sum of its proper divisors (4676872393).

51415501511 is a wasteful number, since it uses less digits than its factorization.

51415501511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228001.

The product of its (nonzero) digits is 2500, while the sum is 29.

The spelling of 51415501511 in words is "fifty-one billion, four hundred fifteen million, five hundred one thousand, five hundred eleven".