47255780 has 144 divisors (see below), whose sum is σ = 123959808. Its totient is φ = 14976000.

The previous prime is 47255773. The next prime is 47255783. The reversal of 47255780 is 8755274.

It is not an unprimeable number, because it can be changed into a prime (47255783) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1152560 + ... + 1152600.

It is an arithmetic number, because the mean of its divisors is an integer number (860832).

Almost surely, 2^47255780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47255780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61979904).

47255780 is an abundant number, since it is smaller than the sum of its proper divisors (76704028).

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

47255780 is a wasteful number, since it uses less digits than its factorization.

47255780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 47255780 is about 6874.2839627120. The cubic root of 47255780 is about 361.5360804245.

The spelling of 47255780 in words is "forty-seven million, two hundred fifty-five thousand, seven hundred eighty".