5781501 has 18 divisors (see below), whose sum is σ = 9180990. Its totient is φ = 3503280.

The previous prime is 5781499. The next prime is 5781539. The reversal of 5781501 is 1051875.

5781501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3059001 + 2722500 = 1749^2 + 1650^2 .

It is not a de Polignac number, because 5781501 - 2¹ = 5781499 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1566 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (510055).

Almost surely, 2^5781501 is an apocalyptic number.

It is an amenable number.

5781501 is a deficient number, since it is larger than the sum of its proper divisors (3399489).

5781501 is a wasteful number, since it uses less digits than its factorization.

5781501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337 (or 5323 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 5781501 is about 2404.4752026170. The cubic root of 5781501 is about 179.4789561589.

The spelling of 5781501 in words is "five million, seven hundred eighty-one thousand, five hundred one".