49491547 has 4 divisors (see below), whose sum is σ = 56561776. Its totient is φ = 42421320.

The previous prime is 49491529. The next prime is 49491553. The reversal of 49491547 is 74519494.

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 49491547 - 2¹⁵ = 49458779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49491587) 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, 3535104 + ... + 3535117.

It is an arithmetic number, because the mean of its divisors is an integer number (14140444).

Almost surely, 2^49491547 is an apocalyptic number.

49491547 is a deficient number, since it is larger than the sum of its proper divisors (7070229).

49491547 is an equidigital number, since it uses as much as digits as its factorization.

49491547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070228.

The product of its digits is 181440, while the sum is 43.

The square root of 49491547 is about 7035.0228855349. The cubic root of 49491547 is about 367.1501215985.

The spelling of 49491547 in words is "forty-nine million, four hundred ninety-one thousand, five hundred forty-seven".