56523433 has 4 divisors (see below), whose sum is σ = 56542420. Its totient is φ = 56504448.

The previous prime is 56523427. The next prime is 56523451. The reversal of 56523433 is 33432565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18429849 + 38093584 = 4293^2 + 6172^2 .

It is a cyclic number.

It is not a de Polignac number, because 56523433 - 2¹³ = 56515241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56523395 and 56523404.

It is not an unprimeable number, because it can be changed into a prime (56523403) 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, 3948 + ... + 11341.

It is an arithmetic number, because the mean of its divisors is an integer number (14135605).

Almost surely, 2^56523433 is an apocalyptic number.

It is an amenable number.

56523433 is a deficient number, since it is larger than the sum of its proper divisors (18987).

56523433 is a wasteful number, since it uses less digits than its factorization.

56523433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18986.

The product of its digits is 32400, while the sum is 31.

The square root of 56523433 is about 7518.2067675743. The cubic root of 56523433 is about 383.7745552587.

Adding to 56523433 its reverse (33432565), we get a palindrome (89955998).

The spelling of 56523433 in words is "fifty-six million, five hundred twenty-three thousand, four hundred thirty-three".