50891415 has 16 divisors (see below), whose sum is σ = 81522528. Its totient is φ = 27110016.

The previous prime is 50891411. The next prime is 50891437. The reversal of 50891415 is 51419805.

It is not a de Polignac number, because 50891415 - 2² = 50891411 is a prime.

It is a super-2 number, since 2×50891415² = 5179872241404450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50891411) 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 15 ways as a sum of consecutive naturals, for example, 16797 + ... + 19593.

It is an arithmetic number, because the mean of its divisors is an integer number (5095158).

Almost surely, 2^50891415 is an apocalyptic number.

50891415 is a deficient number, since it is larger than the sum of its proper divisors (30631113).

50891415 is a wasteful number, since it uses less digits than its factorization.

50891415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 50891415 is about 7133.8219069444. The cubic root of 50891415 is about 370.5796004761.

The spelling of 50891415 in words is "fifty million, eight hundred ninety-one thousand, four hundred fifteen".