225143426761 has 4 divisors (see below), whose sum is σ = 245611011024. Its totient is φ = 204675842500.

The previous prime is 225143426747. The next prime is 225143426873. The reversal of 225143426761 is 167624341522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225143426761 - 2¹³ = 225143418569 is a prime.

It is a super-2 number, since 2×225143426761² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225143421761) 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, 10233792115 + ... + 10233792136.

It is an arithmetic number, because the mean of its divisors is an integer number (61402752756).

Almost surely, 2^225143426761 is an apocalyptic number.

It is an amenable number.

225143426761 is a deficient number, since it is larger than the sum of its proper divisors (20467584263).

225143426761 is a wasteful number, since it uses less digits than its factorization.

225143426761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20467584262.

The product of its digits is 483840, while the sum is 43.

The spelling of 225143426761 in words is "two hundred twenty-five billion, one hundred forty-three million, four hundred twenty-six thousand, seven hundred sixty-one".