7432561 has 4 divisors (see below), whose sum is σ = 7572852. Its totient is φ = 7292272.

The previous prime is 7432543. The next prime is 7432571. The reversal of 7432561 is 1652347.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6656400 + 776161 = 2580^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 7432561 - 2¹³ = 7424369 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7432501) 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, 70066 + ... + 70171.

It is an arithmetic number, because the mean of its divisors is an integer number (1893213).

Almost surely, 2^7432561 is an apocalyptic number.

It is an amenable number.

7432561 is a deficient number, since it is larger than the sum of its proper divisors (140291).

7432561 is a wasteful number, since it uses less digits than its factorization.

7432561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140290.

The product of its digits is 5040, while the sum is 28.

The square root of 7432561 is about 2726.2723635030. The cubic root of 7432561 is about 195.1549152489.

The spelling of 7432561 in words is "seven million, four hundred thirty-two thousand, five hundred sixty-one".