50655690 has 24 divisors (see below), whose sum is σ = 131705028. Its totient is φ = 13508160.

The previous prime is 50655667. The next prime is 50655697. The reversal of 50655690 is 9655605.

It can be written as a sum of positive squares in 2 ways, for example, as 45846441 + 4809249 = 6771^2 + 2193^2 .

It is a super-2 number, since 2×50655690² = 5131997858752200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50655697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281331 + ... + 281510.

Almost surely, 2^50655690 is an apocalyptic number.

50655690 is an abundant number, since it is smaller than the sum of its proper divisors (81049338).

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

50655690 is a wasteful number, since it uses less digits than its factorization.

50655690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562854 (or 562851 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 50655690 is about 7117.2810819863. The cubic root of 50655690 is about 370.0065496771.

The spelling of 50655690 in words is "fifty million, six hundred fifty-five thousand, six hundred ninety".