49532591 has 4 divisors (see below), whose sum is σ = 49730184. Its totient is φ = 49335000.

The previous prime is 49532557. The next prime is 49532599. The reversal of 49532591 is 19523594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19523594 = 2 ⋅9761797.

It is a cyclic number.

It is not a de Polignac number, because 49532591 - 2¹⁸ = 49270447 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 (49532599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98420 + ... + 98921.

It is an arithmetic number, because the mean of its divisors is an integer number (12432546).

Almost surely, 2^49532591 is an apocalyptic number.

49532591 is a deficient number, since it is larger than the sum of its proper divisors (197593).

49532591 is a wasteful number, since it uses less digits than its factorization.

49532591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197592.

The product of its digits is 48600, while the sum is 38.

The square root of 49532591 is about 7037.9394001369. The cubic root of 49532591 is about 367.2515877188.

The spelling of 49532591 in words is "forty-nine million, five hundred thirty-two thousand, five hundred ninety-one".