50540661 has 6 divisors (see below), whose sum is σ = 73003190. Its totient is φ = 33693768.

The previous prime is 50540653. The next prime is 50540669. The reversal of 50540661 is 16604505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50540653) and next prime (50540669).

It can be written as a sum of positive squares in only one way, i.e., 44635761 + 5904900 = 6681^2 + 2430^2 .

It is not a de Polignac number, because 50540661 - 2³ = 50540653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50540669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2807806 + ... + 2807823.

Almost surely, 2^50540661 is an apocalyptic number.

It is an amenable number.

50540661 is a deficient number, since it is larger than the sum of its proper divisors (22462529).

50540661 is a wasteful number, since it uses less digits than its factorization.

50540661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615635 (or 5615632 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 50540661 is about 7109.1955241082. The cubic root of 50540661 is about 369.7262669795.

The spelling of 50540661 in words is "fifty million, five hundred forty thousand, six hundred sixty-one".