51155305342 has 8 divisors (see below), whose sum is σ = 76752895032. Its totient is φ = 25571007000.

The previous prime is 51155305339. The next prime is 51155305361. The reversal of 51155305342 is 24350355115.

51155305342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 51155305298 and 51155305307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313209 + ... + 3328612.

It is an arithmetic number, because the mean of its divisors is an integer number (9594111879).

Almost surely, 2^51155305342 is an apocalyptic number.

51155305342 is a deficient number, since it is larger than the sum of its proper divisors (25597589690).

51155305342 is a wasteful number, since it uses less digits than its factorization.

51155305342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645674.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 51155305342 in words is "fifty-one billion, one hundred fifty-five million, three hundred five thousand, three hundred forty-two".