50155162621 has 4 divisors (see below), whose sum is σ = 50155947072. Its totient is φ = 50154378172.

The previous prime is 50155162591. The next prime is 50155162627. The reversal of 50155162621 is 12626155105.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12626155105 = 5 ⋅2525231021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50155162621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50155162627) 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, 286891 + ... + 427336.

It is an arithmetic number, because the mean of its divisors is an integer number (12538986768).

Almost surely, 2^50155162621 is an apocalyptic number.

It is an amenable number.

50155162621 is a deficient number, since it is larger than the sum of its proper divisors (784451).

50155162621 is an equidigital number, since it uses as much as digits as its factorization.

50155162621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784450.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 50155162621 in words is "fifty billion, one hundred fifty-five million, one hundred sixty-two thousand, six hundred twenty-one".