225415388 has 12 divisors (see below), whose sum is σ = 430338552. Its totient is φ = 102461520.

The previous prime is 225415381. The next prime is 225415423. The reversal of 225415388 is 883514522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225415381) 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, 2561495 + ... + 2561582.

It is an arithmetic number, because the mean of its divisors is an integer number (35861546).

Almost surely, 2^225415388 is an apocalyptic number.

It is an amenable number.

225415388 is a deficient number, since it is larger than the sum of its proper divisors (204923164).

225415388 is a wasteful number, since it uses less digits than its factorization.

225415388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123092 (or 5123090 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 225415388 is about 15013.8398819223. The cubic root of 225415388 is about 608.5942618610.

The spelling of 225415388 in words is "two hundred twenty-five million, four hundred fifteen thousand, three hundred eighty-eight".