49549540 has 24 divisors (see below), whose sum is σ = 105130872. Its totient is φ = 19614720.

The previous prime is 49549529. The next prime is 49549559. The reversal of 49549540 is 4594594.

It can be written as a sum of positive squares in 4 ways, for example, as 3526884 + 46022656 = 1878^2 + 6784^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 49549493 and 49549502.

It is an unprimeable number.

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, 10831 + ... + 14710.

It is an arithmetic number, because the mean of its divisors is an integer number (4380453).

Almost surely, 2^49549540 is an apocalyptic number.

It is an amenable number.

49549540 is an abundant number, since it is smaller than the sum of its proper divisors (55581332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49549540 is a wasteful number, since it uses less digits than its factorization.

49549540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25647 (or 25645 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 49549540 is about 7039.1434137969. The cubic root of 49549540 is about 367.2934715048.

The spelling of 49549540 in words is "forty-nine million, five hundred forty-nine thousand, five hundred forty".