50101090 has 16 divisors (see below), whose sum is σ = 97119288. Its totient is φ = 18498816.

The previous prime is 50101049. The next prime is 50101109. The reversal of 50101090 is 9010105.

It can be written as a sum of positive squares in 4 ways, for example, as 18931201 + 31169889 = 4351^2 + 5583^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192567 + ... + 192826.

Almost surely, 2^50101090 is an apocalyptic number.

50101090 is a deficient number, since it is larger than the sum of its proper divisors (47018198).

50101090 is a wasteful number, since it uses less digits than its factorization.

50101090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385413.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 50101090 is about 7078.2123449357. The cubic root of 50101090 is about 368.6512618909.

Adding to 50101090 its reverse (9010105), we get a palindrome (59111195).

The spelling of 50101090 in words is "fifty million, one hundred one thousand, ninety".