50155899 has 8 divisors (see below), whose sum is σ = 70808400. Its totient is φ = 31470336.

The previous prime is 50155883. The next prime is 50155907. The reversal of 50155899 is 99855105.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50155899 - 2⁴ = 50155883 is a prime.

It is a super-2 number, since 2×50155899² = 5031228408996402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50155899.

It is not an unprimeable number, because it can be changed into a prime (50155829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491674 + ... + 491775.

It is an arithmetic number, because the mean of its divisors is an integer number (8851050).

Almost surely, 2^50155899 is an apocalyptic number.

50155899 is a deficient number, since it is larger than the sum of its proper divisors (20652501).

50155899 is a wasteful number, since it uses less digits than its factorization.

50155899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983469.

The product of its (nonzero) digits is 81000, while the sum is 42.

The square root of 50155899 is about 7082.0829563060. The cubic root of 50155899 is about 368.7856438206.

The spelling of 50155899 in words is "fifty million, one hundred fifty-five thousand, eight hundred ninety-nine".