225661142026 has 4 divisors (see below), whose sum is σ = 338491713042. Its totient is φ = 112830571012.

The previous prime is 225661141921. The next prime is 225661142027. The reversal of 225661142026 is 620241166522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121625865001 + 104035277025 = 348749^2 + 322545^2 .

It is not an unprimeable number, because it can be changed into a prime (225661142027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56415285505 + ... + 56415285508.

Almost surely, 2^225661142026 is an apocalyptic number.

225661142026 is a deficient number, since it is larger than the sum of its proper divisors (112830571016).

225661142026 is a wasteful number, since it uses less digits than its factorization.

225661142026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112830571015.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 225661142026 in words is "two hundred twenty-five billion, six hundred sixty-one million, one hundred forty-two thousand, twenty-six".