49013287 has 4 divisors (see below), whose sum is σ = 49938120. Its totient is φ = 48088456.

The previous prime is 49013281. The next prime is 49013291. The reversal of 49013287 is 78231094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49013287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49013281) 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, 462337 + ... + 462442.

It is an arithmetic number, because the mean of its divisors is an integer number (12484530).

Almost surely, 2^49013287 is an apocalyptic number.

49013287 is a deficient number, since it is larger than the sum of its proper divisors (924833).

49013287 is an equidigital number, since it uses as much as digits as its factorization.

49013287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924832.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 49013287 is about 7000.9490070990. The cubic root of 49013287 is about 365.9636436560.

The spelling of 49013287 in words is "forty-nine million, thirteen thousand, two hundred eighty-seven".