49508381 has 12 divisors (see below), whose sum is σ = 54357588. Its totient is φ = 45062784.

The previous prime is 49508363. The next prime is 49508383. The reversal of 49508381 is 18380594.

It can be written as a sum of positive squares in 6 ways, for example, as 1428025 + 48080356 = 1195^2 + 6934^2 .

It is not a de Polignac number, because 49508381 - 2¹⁰ = 49507357 is a prime.

It is a super-2 number, since 2×49508381² = 4902159578482322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49508383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10331 + ... + 14343.

It is an arithmetic number, because the mean of its divisors is an integer number (4529799).

Almost surely, 2^49508381 is an apocalyptic number.

It is an amenable number.

49508381 is a deficient number, since it is larger than the sum of its proper divisors (4849207).

49508381 is a wasteful number, since it uses less digits than its factorization.

49508381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112 (or 4099 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 49508381 is about 7036.2192262606. The cubic root of 49508381 is about 367.1917442250.

It can be divided in two parts, 4950 and 8381, that added together give a palindrome (13331).

The spelling of 49508381 in words is "forty-nine million, five hundred eight thousand, three hundred eighty-one".