11432557 has 2 divisors, whose sum is σ = 11432558. Its totient is φ = 11432556.

The previous prime is 11432507. The next prime is 11432569. The reversal of 11432557 is 75523411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7295401 + 4137156 = 2701^2 + 2034^2 .

It is a cyclic number.

It is not a de Polignac number, because 11432557 - 2¹⁹ = 10908269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11432507) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5716278 + 5716279.

It is an arithmetic number, because the mean of its divisors is an integer number (5716279).

Almost surely, 2^11432557 is an apocalyptic number.

It is an amenable number.

11432557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11432557 is an equidigital number, since it uses as much as digits as its factorization.

11432557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 11432557 is about 3381.2064414939. The cubic root of 11432557 is about 225.2757573702.

Adding to 11432557 its reverse (75523411), we get a palindrome (86955968).

The spelling of 11432557 in words is "eleven million, four hundred thirty-two thousand, five hundred fifty-seven".