49810513 has 8 divisors (see below), whose sum is σ = 51205608. Its totient is φ = 48432384.

The previous prime is 49810499. The next prime is 49810517. The reversal of 49810513 is 31501894.

It can be written as a sum of positive squares in 4 ways, for example, as 11778624 + 38031889 = 3432^2 + 6167^2 .

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 49810513 - 2¹³ = 49802321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49810517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (6400701).

Almost surely, 2^49810513 is an apocalyptic number.

It is an amenable number.

49810513 is a deficient number, since it is larger than the sum of its proper divisors (1395095).

49810513 is a wasteful number, since it uses less digits than its factorization.

49810513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 49810513 is about 7057.6563390406. The cubic root of 49810513 is about 367.9371766772.

It can be divided in two parts, 498 and 10513, that added together give a palindrome (11011).

The spelling of 49810513 in words is "forty-nine million, eight hundred ten thousand, five hundred thirteen".