11775523 has 2 divisors, whose sum is σ = 11775524. Its totient is φ = 11775522.

The previous prime is 11775493. The next prime is 11775527. The reversal of 11775523 is 32557711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11775523 - 2¹³ = 11767331 is a prime.

It is equal to p₇₇₄₂₄₇ and since 11775523 and 774247 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11775527) 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, 5887761 + 5887762.

It is an arithmetic number, because the mean of its divisors is an integer number (5887762).

Almost surely, 2^11775523 is an apocalyptic number.

11775523 is a deficient number, since it is larger than the sum of its proper divisors (1).

11775523 is an equidigital number, since it uses as much as digits as its factorization.

11775523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7350, while the sum is 31.

The square root of 11775523 is about 3431.5481928715. The cubic root of 11775523 is about 227.5062865066.

The spelling of 11775523 in words is "eleven million, seven hundred seventy-five thousand, five hundred twenty-three".