50557945 has 4 divisors (see below), whose sum is σ = 60669540. Its totient is φ = 40446352.

The previous prime is 50557939. The next prime is 50557957. The reversal of 50557945 is 54975505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5143824 + 45414121 = 2268^2 + 6739^2 .

It is a cyclic number.

It is not a de Polignac number, because 50557945 - 2⁹ = 50557433 is a prime.

It is a super-2 number, since 2×50557945² = 5112211605246050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50557898 and 50557907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055790 + ... + 5055799.

It is an arithmetic number, because the mean of its divisors is an integer number (15167385).

Almost surely, 2^50557945 is an apocalyptic number.

It is an amenable number.

50557945 is a deficient number, since it is larger than the sum of its proper divisors (10111595).

50557945 is a wasteful number, since it uses less digits than its factorization.

50557945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111594.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 50557945 is about 7110.4110289068. The cubic root of 50557945 is about 369.7684087610.

The spelling of 50557945 in words is "fifty million, five hundred fifty-seven thousand, nine hundred forty-five".