225651393 has 32 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 136115280.

The previous prime is 225651359. The next prime is 225651409. The reversal of 225651393 is 393156522.

225651393 is a `hidden beast` number, since 2 + 2 + 56 + 513 + 93 = 666.

225651393 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 225651393 - 2⁹ = 225650881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225651593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65746 + ... + 69092.

It is an arithmetic number, because the mean of its divisors is an integer number (11450160).

Almost surely, 2^225651393 is an apocalyptic number.

It is an amenable number.

225651393 is a deficient number, since it is larger than the sum of its proper divisors (140753727).

225651393 is a wasteful number, since it uses less digits than its factorization.

225651393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594 (or 3588 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 225651393 is about 15021.6974074170. The cubic root of 225651393 is about 608.8065827572.

The spelling of 225651393 in words is "two hundred twenty-five million, six hundred fifty-one thousand, three hundred ninety-three".