11564457 has 8 divisors (see below), whose sum is σ = 15916800. Its totient is φ = 7460880.

The previous prime is 11564447. The next prime is 11564459. The reversal of 11564457 is 75446511.

11564457 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11564457 - 2¹¹ = 11562409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11564459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62082 + ... + 62267.

It is an arithmetic number, because the mean of its divisors is an integer number (1989600).

Almost surely, 2^11564457 is an apocalyptic number.

It is an amenable number.

11564457 is a deficient number, since it is larger than the sum of its proper divisors (4352343).

11564457 is a wasteful number, since it uses less digits than its factorization.

11564457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124383.

The product of its digits is 16800, while the sum is 33.

The square root of 11564457 is about 3400.6553780117. The cubic root of 11564457 is about 226.1387992762.

It can be divided in two parts, 11564 and 457, that added together give a palindrome (12021).

The spelling of 11564457 in words is "eleven million, five hundred sixty-four thousand, four hundred fifty-seven".