52443578 has 24 divisors (see below), whose sum is σ = 88818996. Its totient is φ = 23189760.

The previous prime is 52443577. The next prime is 52443581. The reversal of 52443578 is 87534425.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40284409 + 12159169 = 6347^2 + 3487^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52443577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6026 + ... + 11882.

Almost surely, 2^52443578 is an apocalyptic number.

52443578 is a deficient number, since it is larger than the sum of its proper divisors (36375418).

52443578 is a wasteful number, since it uses less digits than its factorization.

52443578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918 (or 5907 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 52443578 is about 7241.7938385458. The cubic root of 52443578 is about 374.3094324988.

The spelling of 52443578 in words is "fifty-two million, four hundred forty-three thousand, five hundred seventy-eight".