49781544 has 32 divisors (see below), whose sum is σ = 127491840. Its totient is φ = 16188800.

The previous prime is 49781533. The next prime is 49781581. The reversal of 49781544 is 44518794.

It is a junction number, because it is equal to n+sod(n) for n = 49781496 and 49781505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24312 + ... + 26279.

It is an arithmetic number, because the mean of its divisors is an integer number (3984120).

Almost surely, 2^49781544 is an apocalyptic number.

It is an amenable number.

49781544 is an abundant number, since it is smaller than the sum of its proper divisors (77710296).

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

49781544 is a wasteful number, since it uses less digits than its factorization.

49781544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50641 (or 50637 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 49781544 is about 7055.6037303692. The cubic root of 49781544 is about 367.8658340468.

The spelling of 49781544 in words is "forty-nine million, seven hundred eighty-one thousand, five hundred forty-four".