52251578 has 4 divisors (see below), whose sum is σ = 78377370. Its totient is φ = 26125788.

The previous prime is 52251559. The next prime is 52251581. The reversal of 52251578 is 87515225.

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

It can be written as a sum of positive squares in only one way, i.e., 27321529 + 24930049 = 5227^2 + 4993^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13062893 + ... + 13062896.

Almost surely, 2^52251578 is an apocalyptic number.

52251578 is a deficient number, since it is larger than the sum of its proper divisors (26125792).

52251578 is a wasteful number, since it uses less digits than its factorization.

52251578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26125791.

The product of its digits is 28000, while the sum is 35.

The square root of 52251578 is about 7228.5252991188. The cubic root of 52251578 is about 373.8520819730.

The spelling of 52251578 in words is "fifty-two million, two hundred fifty-one thousand, five hundred seventy-eight".