252387578 has 8 divisors (see below), whose sum is σ = 378763668. Its totient is φ = 126133024.

The previous prime is 252387571. The next prime is 252387581. The reversal of 252387578 is 875783252.

It is a happy number.

252387578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 249418849 + 2968729 = 15793^2 + 1723^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252387571) 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, 25001 + ... + 33612.

Almost surely, 2^252387578 is an apocalyptic number.

252387578 is a deficient number, since it is larger than the sum of its proper divisors (126376090).

252387578 is a wasteful number, since it uses less digits than its factorization.

252387578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60768.

The product of its digits is 940800, while the sum is 47.

The square root of 252387578 is about 15886.7107357061. The cubic root of 252387578 is about 631.9596142676.

The spelling of 252387578 in words is "two hundred fifty-two million, three hundred eighty-seven thousand, five hundred seventy-eight".