49090187 has 2 divisors, whose sum is σ = 49090188. Its totient is φ = 49090186.

The previous prime is 49090121. The next prime is 49090189. The reversal of 49090187 is 78109094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49090187 - 2¹⁰ = 49089163 is a prime.

Together with 49090189, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 49090187.

It is not a weakly prime, because it can be changed into another prime (49090189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24545093 + 24545094.

It is an arithmetic number, because the mean of its divisors is an integer number (24545094).

Almost surely, 2^49090187 is an apocalyptic number.

49090187 is a deficient number, since it is larger than the sum of its proper divisors (1).

49090187 is an equidigital number, since it uses as much as digits as its factorization.

49090187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 49090187 is about 7006.4389671216. The cubic root of 49090187 is about 366.1549380342.

The spelling of 49090187 in words is "forty-nine million, ninety thousand, one hundred eighty-seven".