5572781 has 4 divisors (see below), whose sum is σ = 5577792. Its totient is φ = 5567772.

The previous prime is 5572771. The next prime is 5572793. The reversal of 5572781 is 1872755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5572781 - 2⁶ = 5572717 is a prime.

It is a super-2 number, since 2×5572781² = 62111776147922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5572751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (1394448).

Almost surely, 2^5572781 is an apocalyptic number.

It is an amenable number.

5572781 is a deficient number, since it is larger than the sum of its proper divisors (5011).

5572781 is a wasteful number, since it uses less digits than its factorization.

5572781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010.

The product of its digits is 19600, while the sum is 35.

The square root of 5572781 is about 2360.6738444775. The cubic root of 5572781 is about 177.2926203325.

The spelling of 5572781 in words is "five million, five hundred seventy-two thousand, seven hundred eighty-one".