49531187 has 2 divisors, whose sum is σ = 49531188. Its totient is φ = 49531186.

The previous prime is 49531147. The next prime is 49531189. The reversal of 49531187 is 78113594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49531187 - 2⁸ = 49530931 is a prime.

Together with 49531189, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49531187.

It is not a weakly prime, because it can be changed into another prime (49531189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24765593 + 24765594.

It is an arithmetic number, because the mean of its divisors is an integer number (24765594).

Almost surely, 2^49531187 is an apocalyptic number.

49531187 is a deficient number, since it is larger than the sum of its proper divisors (1).

49531187 is an equidigital number, since it uses as much as digits as its factorization.

49531187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 49531187 is about 7037.8396543258. The cubic root of 49531187 is about 367.2481177738.

The spelling of 49531187 in words is "forty-nine million, five hundred thirty-one thousand, one hundred eighty-seven".