236857225 has 12 divisors (see below), whose sum is σ = 320403600. Its totient is φ = 172259600.

The previous prime is 236857223. The next prime is 236857259. The reversal of 236857225 is 522758632.

236857225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 236857225 - 2¹ = 236857223 is a prime.

It is a super-2 number, since 2×236857225² = 112202690069401250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (236857223) 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, 430375 + ... + 430924.

It is an arithmetic number, because the mean of its divisors is an integer number (26700300).

Almost surely, 2^236857225 is an apocalyptic number.

236857225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

236857225 is a deficient number, since it is larger than the sum of its proper divisors (83546375).

236857225 is a wasteful number, since it uses less digits than its factorization.

236857225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861320 (or 861315 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 236857225 is about 15390.1665033228. The cubic root of 236857225 is about 618.7219815221.

The spelling of 236857225 in words is "two hundred thirty-six million, eight hundred fifty-seven thousand, two hundred twenty-five".