49815263 has 8 divisors (see below), whose sum is σ = 52080000. Its totient is φ = 47558808.

The previous prime is 49815257. The next prime is 49815281. The reversal of 49815263 is 36251894.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49815263 - 2⁴ = 49815247 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 (49815463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12488 + ... + 15986.

It is an arithmetic number, because the mean of its divisors is an integer number (6510000).

Almost surely, 2^49815263 is an apocalyptic number.

49815263 is a deficient number, since it is larger than the sum of its proper divisors (2264737).

49815263 is a wasteful number, since it uses less digits than its factorization.

49815263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141.

The product of its digits is 51840, while the sum is 38.

The square root of 49815263 is about 7057.9928449950. The cubic root of 49815263 is about 367.9488719730.

The spelling of 49815263 in words is "forty-nine million, eight hundred fifteen thousand, two hundred sixty-three".