225175333978 has 16 divisors (see below), whose sum is σ = 386209961280. Its totient is φ = 96454938816.

The previous prime is 225175333961. The next prime is 225175333979. The reversal of 225175333978 is 879333571522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225175333979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4035951 + ... + 4091362.

It is an arithmetic number, because the mean of its divisors is an integer number (24138122580).

Almost surely, 2^225175333978 is an apocalyptic number.

225175333978 is a deficient number, since it is larger than the sum of its proper divisors (161034627302).

225175333978 is a wasteful number, since it uses less digits than its factorization.

225175333978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129301.

The product of its digits is 9525600, while the sum is 55.

It can be divided in two parts, 225175 and 333978, that added together give a triangular number (559153 = T₁₀₅₇).

The spelling of 225175333978 in words is "two hundred twenty-five billion, one hundred seventy-five million, three hundred thirty-three thousand, nine hundred seventy-eight".