50000090 has 48 divisors (see below), whose sum is σ = 106326432. Its totient is φ = 16875936.

The previous prime is 50000063. The next prime is 50000101. The reversal of 50000090 is 9000005.

It is a Harshad number since it is a multiple of its sum of digits (14).

50000090 is a modest number, since divided by 90 gives 50 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32069 + ... + 33591.

It is an arithmetic number, because the mean of its divisors is an integer number (2215134).

Almost surely, 2^50000090 is an apocalyptic number.

50000090 is an abundant number, since it is smaller than the sum of its proper divisors (56326342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50000090 is a wasteful number, since it uses less digits than its factorization.

50000090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 50000090 is about 7071.0741758236. The cubic root of 50000090 is about 368.4033709058.

Adding to 50000090 its reverse (9000005), we get a palindrome (59000095).

The spelling of 50000090 in words is "fifty million, ninety", and thus it is an aban number and an uban number.