225331977 has 8 divisors (see below), whose sum is σ = 323553664. Its totient is φ = 138665808.

The previous prime is 225331903. The next prime is 225331999. The reversal of 225331977 is 779133522.

225331977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 225331977 - 2⁸ = 225331721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5777743 = 225331977 / (2 + 2 + 5 + 3 + 3 + 1 + 9 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225331177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2888833 + ... + 2888910.

It is an arithmetic number, because the mean of its divisors is an integer number (40444208).

Almost surely, 2^225331977 is an apocalyptic number.

It is an amenable number.

225331977 is a deficient number, since it is larger than the sum of its proper divisors (98221687).

225331977 is a wasteful number, since it uses less digits than its factorization.

225331977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777759.

The product of its digits is 79380, while the sum is 39.

The square root of 225331977 is about 15011.0618212037. The cubic root of 225331977 is about 608.5191860656.

The spelling of 225331977 in words is "two hundred twenty-five million, three hundred thirty-one thousand, nine hundred seventy-seven".