50985405 has 12 divisors (see below), whose sum is σ = 88374780. Its totient is φ = 27192192.

The previous prime is 50985383. The next prime is 50985419. The reversal of 50985405 is 50458905.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36832761 + 14152644 = 6069^2 + 3762^2 .

It is not a de Polignac number, because 50985405 - 2⁹ = 50984893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50985405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566460 + ... + 566549.

It is an arithmetic number, because the mean of its divisors is an integer number (7364565).

Almost surely, 2^50985405 is an apocalyptic number.

It is an amenable number.

50985405 is a deficient number, since it is larger than the sum of its proper divisors (37389375).

50985405 is a wasteful number, since it uses less digits than its factorization.

50985405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133020 (or 1133017 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 50985405 is about 7140.4065010334. The cubic root of 50985405 is about 370.8075980401.

The spelling of 50985405 in words is "fifty million, nine hundred eighty-five thousand, four hundred five".