5642569 has 4 divisors (see below), whose sum is σ = 5668096. Its totient is φ = 5617044.

The previous prime is 5642531. The next prime is 5642591. The reversal of 5642569 is 9652465.

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 an emirpimes, since its reverse is a distinct semiprime: 9652465 = 5 ⋅1930493.

It is a cyclic number.

It is not a de Polignac number, because 5642569 - 2⁹ = 5642057 is a prime.

It is a super-2 number, since 2×5642569² = 63677169839522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5642509) 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, 12429 + ... + 12874.

It is an arithmetic number, because the mean of its divisors is an integer number (1417024).

Almost surely, 2^5642569 is an apocalyptic number.

It is an amenable number.

5642569 is a deficient number, since it is larger than the sum of its proper divisors (25527).

5642569 is a wasteful number, since it uses less digits than its factorization.

5642569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25526.

The product of its digits is 64800, while the sum is 37.

The square root of 5642569 is about 2375.4092279016. The cubic root of 5642569 is about 178.0296314765.

The spelling of 5642569 in words is "five million, six hundred forty-two thousand, five hundred sixty-nine".