50551010111001 has 4 divisors (see below), whose sum is σ = 67401346814672. Its totient is φ = 33700673407332.

The previous prime is 50551010110889. The next prime is 50551010111009. The reversal of 50551010111001 is 10011101015505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50551010111001 - 2⁷ = 50551010110873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50551010111009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8425168351831 + ... + 8425168351836.

It is an arithmetic number, because the mean of its divisors is an integer number (16850336703668).

Almost surely, 2^{50551010111001} is an apocalyptic number.

It is an amenable number.

50551010111001 is a deficient number, since it is larger than the sum of its proper divisors (16850336703671).

50551010111001 is a wasteful number, since it uses less digits than its factorization.

50551010111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16850336703670.

The product of its (nonzero) digits is 125, while the sum is 21.

Adding to 50551010111001 its reverse (10011101015505), we get a palindrome (60562111126506).

The spelling of 50551010111001 in words is "fifty trillion, five hundred fifty-one billion, ten million, one hundred eleven thousand, one".