50050190961 has 9 divisors (see below), whose sum is σ = 72295689739. Its totient is φ = 33366346536.

The previous prime is 50050190941. The next prime is 50050190969. The reversal of 50050190961 is 16909105005.

The square root of 50050190961 is 223719.

It is a perfect power (a square), and thus also a powerful number.

50050190961 is a `hidden beast` number, since 5 + 0 + 0 + 501 + 90 + 9 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35398541025 + 14651649936 = 188145^2 + 121044^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 50050190961 - 2⁵ = 50050190929 is a prime.

It is a super-2 number, since 2×50050190961² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50050190969) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 633871 + ... + 708443.

Almost surely, 2^50050190961 is an apocalyptic number.

50050190961 is the 223719-th square number.

50050190961 is the 111860-th centered octagonal number.

It is an amenable number.

50050190961 is a deficient number, since it is larger than the sum of its proper divisors (22245498778).

50050190961 is an frugal number, since it uses more digits than its factorization.

50050190961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149152 (or 74576 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

Multiplying 50050190961 by its sum of digits (36), we get a square (1801806874596 = 1342314²).

Adding to 50050190961 its reverse (16909105005), we get a palindrome (66959295966).

The spelling of 50050190961 in words is "fifty billion, fifty million, one hundred ninety thousand, nine hundred sixty-one".