49935391 has 4 divisors (see below), whose sum is σ = 54474984. Its totient is φ = 45395800.

The previous prime is 49935383. The next prime is 49935397. The reversal of 49935391 is 19353994.

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

It is a cyclic number.

It is not a de Polignac number, because 49935391 - 2³ = 49935383 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 (49935397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2269780 + ... + 2269801.

It is an arithmetic number, because the mean of its divisors is an integer number (13618746).

Almost surely, 2^49935391 is an apocalyptic number.

49935391 is a deficient number, since it is larger than the sum of its proper divisors (4539593).

49935391 is a wasteful number, since it uses less digits than its factorization.

49935391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539592.

The product of its digits is 131220, while the sum is 43.

The square root of 49935391 is about 7066.4977888626. The cubic root of 49935391 is about 368.2444004060.

The spelling of 49935391 in words is "forty-nine million, nine hundred thirty-five thousand, three hundred ninety-one".