49549987 has 2 divisors, whose sum is σ = 49549988. Its totient is φ = 49549986.

The previous prime is 49549979. The next prime is 49549999. The reversal of 49549987 is 78994594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49549987 - 2³ = 49549979 is a prime.

It is not a weakly prime, because it can be changed into another prime (49549937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24774993 + 24774994.

It is an arithmetic number, because the mean of its divisors is an integer number (24774994).

Almost surely, 2^49549987 is an apocalyptic number.

49549987 is a deficient number, since it is larger than the sum of its proper divisors (1).

49549987 is an equidigital number, since it uses as much as digits as its factorization.

49549987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The square root of 49549987 is about 7039.1751647476. The cubic root of 49549987 is about 367.2945759865.

It can be divided in two parts, 4954 and 9987, that added together give a palindrome (14941).

The spelling of 49549987 in words is "forty-nine million, five hundred forty-nine thousand, nine hundred eighty-seven".