50699000173 has 2 divisors, whose sum is σ = 50699000174. Its totient is φ = 50699000172.

The previous prime is 50699000153. The next prime is 50699000179. The reversal of 50699000173 is 37100099605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38841314724 + 11857685449 = 197082^2 + 108893^2 .

It is a cyclic number.

It is not a de Polignac number, because 50699000173 - 2²¹ = 50696903021 is a prime.

It is a super-3 number, since 3×50699000173³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50699000179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25349500086 + 25349500087.

It is an arithmetic number, because the mean of its divisors is an integer number (25349500087).

Almost surely, 2^50699000173 is an apocalyptic number.

It is an amenable number.

50699000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

50699000173 is an equidigital number, since it uses as much as digits as its factorization.

50699000173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

Adding to 50699000173 its reverse (37100099605), we get a palindrome (87799099778).

The spelling of 50699000173 in words is "fifty billion, six hundred ninety-nine million, one hundred seventy-three", and thus it is an aban number.