51542050154 has 8 divisors (see below), whose sum is σ = 88357800288. Its totient is φ = 22089450060.

The previous prime is 51542050111. The next prime is 51542050187. The reversal of 51542050154 is 45105024515.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51542050154.

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, 1840787492 + ... + 1840787519.

It is an arithmetic number, because the mean of its divisors is an integer number (11044725036).

Almost surely, 2^51542050154 is an apocalyptic number.

51542050154 is a deficient number, since it is larger than the sum of its proper divisors (36815750134).

51542050154 is a wasteful number, since it uses less digits than its factorization.

51542050154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681575020.

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 51542050154 its reverse (45105024515), we get a palindrome (96647074669).

The spelling of 51542050154 in words is "fifty-one billion, five hundred forty-two million, fifty thousand, one hundred fifty-four".