50621414551 has 4 divisors (see below), whose sum is σ = 52366980600. Its totient is φ = 48875848504.

The previous prime is 50621414549. The next prime is 50621414579. The reversal of 50621414551 is 15541412605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50621414551 - 2¹ = 50621414549 is a prime.

It is a super-2 number, since 2×50621414551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50621414351) 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, 872782981 + ... + 872783038.

It is an arithmetic number, because the mean of its divisors is an integer number (13091745150).

Almost surely, 2^50621414551 is an apocalyptic number.

50621414551 is a deficient number, since it is larger than the sum of its proper divisors (1745566049).

50621414551 is a wasteful number, since it uses less digits than its factorization.

50621414551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745566048.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 50621414551 in words is "fifty billion, six hundred twenty-one million, four hundred fourteen thousand, five hundred fifty-one".