11292557 has 2 divisors, whose sum is σ = 11292558. Its totient is φ = 11292556.

The previous prime is 11292553. The next prime is 11292559. The reversal of 11292557 is 75529211.

It is a happy number.

11292557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10407076 + 885481 = 3226^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 11292557 - 2² = 11292553 is a prime.

Together with 11292559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11292553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5646278 + 5646279.

It is an arithmetic number, because the mean of its divisors is an integer number (5646279).

Almost surely, 2^11292557 is an apocalyptic number.

It is an amenable number.

11292557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11292557 is an equidigital number, since it uses as much as digits as its factorization.

11292557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 32.

The square root of 11292557 is about 3360.4400009523. The cubic root of 11292557 is about 224.3524227560.

The spelling of 11292557 in words is "eleven million, two hundred ninety-two thousand, five hundred fifty-seven".