5271780 has 48 divisors (see below), whose sum is σ = 15128064. Its totient is φ = 1370880.

The previous prime is 5271743. The next prime is 5271781. The reversal of 5271780 is 871725.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5271781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389 + ... + 3531.

It is an arithmetic number, because the mean of its divisors is an integer number (315168).

Almost surely, 2^5271780 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 5271780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7564032).

5271780 is an abundant number, since it is smaller than the sum of its proper divisors (9856284).

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

5271780 is a wasteful number, since it uses less digits than its factorization.

5271780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 5271780 is about 2296.0357140080. The cubic root of 5271780 is about 174.0413430627.

The spelling of 5271780 in words is "five million, two hundred seventy-one thousand, seven hundred eighty".