49089515 has 4 divisors (see below), whose sum is σ = 58907424. Its totient is φ = 39271608.

The previous prime is 49089503. The next prime is 49089517. The reversal of 49089515 is 51598094.

It is a happy number.

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 49089515 - 2¹⁸ = 48827371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49089517) 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, 4908947 + ... + 4908956.

It is an arithmetic number, because the mean of its divisors is an integer number (14726856).

Almost surely, 2^49089515 is an apocalyptic number.

49089515 is a deficient number, since it is larger than the sum of its proper divisors (9817909).

49089515 is an equidigital number, since it uses as much as digits as its factorization.

49089515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9817908.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 49089515 is about 7006.3910110698. The cubic root of 49089515 is about 366.1532672506.

The spelling of 49089515 in words is "forty-nine million, eighty-nine thousand, five hundred fifteen".