11575601 has 4 divisors (see below), whose sum is σ = 12078912. Its totient is φ = 11072292.

The previous prime is 11575567. The next prime is 11575609. The reversal of 11575601 is 10657511.

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: 10657511 = 269 ⋅39619.

It is not a de Polignac number, because 11575601 - 2¹⁸ = 11313457 is a prime.

It is a super-2 number, since 2×11575601² = 267989077022402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11575609) 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, 251621 + ... + 251666.

It is an arithmetic number, because the mean of its divisors is an integer number (3019728).

Almost surely, 2^11575601 is an apocalyptic number.

It is an amenable number.

11575601 is a deficient number, since it is larger than the sum of its proper divisors (503311).

11575601 is an equidigital number, since it uses as much as digits as its factorization.

11575601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503310.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 11575601 is about 3402.2934911615. The cubic root of 11575601 is about 226.2114149273.

The spelling of 11575601 in words is "eleven million, five hundred seventy-five thousand, six hundred one".