50431405 has 8 divisors (see below), whose sum is σ = 61198200. Its totient is φ = 39891456.

The previous prime is 50431397. The next prime is 50431411. The reversal of 50431405 is 50413405.

It can be written as a sum of positive squares in 4 ways, for example, as 4652649 + 45778756 = 2157^2 + 6766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50431405 - 2³ = 50431397 is a prime.

It is a super-2 number, since 2×50431405² = 5086653220548050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56220 + ... + 57109.

It is an arithmetic number, because the mean of its divisors is an integer number (7649775).

Almost surely, 2^50431405 is an apocalyptic number.

It is an amenable number.

50431405 is a deficient number, since it is larger than the sum of its proper divisors (10766795).

50431405 is a wasteful number, since it uses less digits than its factorization.

50431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113423.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50431405 is about 7101.5072343834. The cubic root of 50431405 is about 369.4596568548.

The spelling of 50431405 in words is "fifty million, four hundred thirty-one thousand, four hundred five".