50512123401 has 4 divisors (see below), whose sum is σ = 67349497872. Its totient is φ = 33674748932.

The previous prime is 50512123399. The next prime is 50512123421. The reversal of 50512123401 is 10432121505.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 50512123401 - 2¹ = 50512123399 is a prime.

It is a super-2 number, since 2×50512123401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50512123421) 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, 8418687231 + ... + 8418687236.

It is an arithmetic number, because the mean of its divisors is an integer number (16837374468).

Almost surely, 2^50512123401 is an apocalyptic number.

It is an amenable number.

50512123401 is a deficient number, since it is larger than the sum of its proper divisors (16837374471).

50512123401 is a wasteful number, since it uses less digits than its factorization.

50512123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16837374470.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 50512123401 its reverse (10432121505), we get a palindrome (60944244906).

The spelling of 50512123401 in words is "fifty billion, five hundred twelve million, one hundred twenty-three thousand, four hundred one".