51010013155 has 8 divisors (see below), whose sum is σ = 61353385632. Its totient is φ = 40713763968.

The previous prime is 51010013147. The next prime is 51010013161. The reversal of 51010013155 is 55131001015.

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 51010013155 - 2³ = 51010013147 is a prime.

It is a Duffinian 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, 11778439 + ... + 11782768.

It is an arithmetic number, because the mean of its divisors is an integer number (7669173204).

Almost surely, 2^51010013155 is an apocalyptic number.

51010013155 is a deficient number, since it is larger than the sum of its proper divisors (10343372477).

51010013155 is a wasteful number, since it uses less digits than its factorization.

51010013155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23561645.

The product of its (nonzero) digits is 375, while the sum is 22.

The spelling of 51010013155 in words is "fifty-one billion, ten million, thirteen thousand, one hundred fifty-five".