49771780 has 24 divisors (see below), whose sum is σ = 105783552. Its totient is φ = 19668192.

The previous prime is 49771759. The next prime is 49771783. The reversal of 49771780 is 8717794.

It is not an unprimeable number, because it can be changed into a prime (49771783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13332 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (4407648).

Almost surely, 2^49771780 is an apocalyptic number.

It is an amenable number.

49771780 is an abundant number, since it is smaller than the sum of its proper divisors (56011772).

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

49771780 is a wasteful number, since it uses less digits than its factorization.

49771780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30075 (or 30073 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 49771780 is about 7054.9117641541. The cubic root of 49771780 is about 367.8417817805.

The spelling of 49771780 in words is "forty-nine million, seven hundred seventy-one thousand, seven hundred eighty".