49202591 has 4 divisors (see below), whose sum is σ = 49561872. Its totient is φ = 48843312.

The previous prime is 49202581. The next prime is 49202597. The reversal of 49202591 is 19520294.

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 49202591 - 2¹⁰ = 49201567 is a prime.

It is a super-2 number, since 2×49202591² = 4841789922226562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49202597) 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, 179435 + ... + 179708.

It is an arithmetic number, because the mean of its divisors is an integer number (12390468).

Almost surely, 2^49202591 is an apocalyptic number.

49202591 is a deficient number, since it is larger than the sum of its proper divisors (359281).

49202591 is a wasteful number, since it uses less digits than its factorization.

49202591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359280.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 49202591 is about 7014.4558591526. The cubic root of 49202591 is about 366.4341921231.

The spelling of 49202591 in words is "forty-nine million, two hundred two thousand, five hundred ninety-one".