50721521011154 has 32 divisors (see below), whose sum is σ = 90087258980352. Its totient is φ = 20958949746000.

The previous prime is 50721521011127. The next prime is 50721521011159. The reversal of 50721521011154 is 45111012512705.

It is not an unprimeable number, because it can be changed into a prime (50721521011159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215509442 + ... + 215744669.

It is an arithmetic number, because the mean of its divisors is an integer number (2815226843136).

Almost surely, 2^{50721521011154} is an apocalyptic number.

50721521011154 is a deficient number, since it is larger than the sum of its proper divisors (39365737969198).

50721521011154 is a wasteful number, since it uses less digits than its factorization.

50721521011154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431254422.

The product of its (nonzero) digits is 14000, while the sum is 35.

Adding to 50721521011154 its reverse (45111012512705), we get a palindrome (95832533523859).

The spelling of 50721521011154 in words is "fifty trillion, seven hundred twenty-one billion, five hundred twenty-one million, eleven thousand, one hundred fifty-four".