56447522 has 4 divisors (see below), whose sum is σ = 84671286. Its totient is φ = 28223760.

The previous prime is 56447513. The next prime is 56447527. The reversal of 56447522 is 22574465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22574465 = 5 ⋅4514893.

It can be written as a sum of positive squares in only one way, i.e., 56235001 + 212521 = 7499^2 + 461^2 .

It is not an unprimeable number, because it can be changed into a prime (56447527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14111879 + ... + 14111882.

Almost surely, 2^56447522 is an apocalyptic number.

56447522 is a deficient number, since it is larger than the sum of its proper divisors (28223764).

56447522 is a wasteful number, since it uses less digits than its factorization.

56447522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28223763.

The product of its digits is 67200, while the sum is 35.

The square root of 56447522 is about 7513.1565936030. The cubic root of 56447522 is about 383.6026751481.

The spelling of 56447522 in words is "fifty-six million, four hundred forty-seven thousand, five hundred twenty-two".