253202878 has 4 divisors (see below), whose sum is σ = 379804320. Its totient is φ = 126601438.

The previous prime is 253202863. The next prime is 253202881. The reversal of 253202878 is 878202352.

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

It is a super-2 number, since 2×253202878² = 128223394854965768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63300718 + ... + 63300721.

It is an arithmetic number, because the mean of its divisors is an integer number (94951080).

Almost surely, 2^253202878 is an apocalyptic number.

253202878 is a deficient number, since it is larger than the sum of its proper divisors (126601442).

253202878 is a wasteful number, since it uses less digits than its factorization.

253202878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126601441.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 253202878 is about 15912.3498578934. The cubic root of 253202878 is about 632.6393662493.

The spelling of 253202878 in words is "two hundred fifty-three million, two hundred two thousand, eight hundred seventy-eight".