49491481 has 6 divisors (see below), whose sum is σ = 53591550. Its totient is φ = 45684288.

The previous prime is 49491479. The next prime is 49491503. The reversal of 49491481 is 18419494.

It can be written as a sum of positive squares in 3 ways, for example, as 256 + 49491225 = 16^2 + 7035^2 .

It is not a de Polignac number, because 49491481 - 2¹ = 49491479 is a prime.

It is a super-2 number, since 2×49491481² = 4898813383146722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49401481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146256 + ... + 146593.

It is an arithmetic number, because the mean of its divisors is an integer number (8931925).

Almost surely, 2^49491481 is an apocalyptic number.

It is an amenable number.

49491481 is a deficient number, since it is larger than the sum of its proper divisors (4100069).

49491481 is a wasteful number, since it uses less digits than its factorization.

49491481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292875 (or 292862 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 49491481 is about 7035.0181947171. The cubic root of 49491481 is about 367.1499583927.

The spelling of 49491481 in words is "forty-nine million, four hundred ninety-one thousand, four hundred eighty-one".