225442534 has 4 divisors (see below), whose sum is σ = 338163804. Its totient is φ = 112721266.

The previous prime is 225442501. The next prime is 225442561. The reversal of 225442534 is 435244522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435244522 = 2 ⋅217622261.

It is a super-3 number, since 3×225442534³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 225442496 and 225442505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56360632 + ... + 56360635.

It is an arithmetic number, because the mean of its divisors is an integer number (84540951).

Almost surely, 2^225442534 is an apocalyptic number.

225442534 is a deficient number, since it is larger than the sum of its proper divisors (112721270).

225442534 is a wasteful number, since it uses less digits than its factorization.

225442534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112721269.

The product of its digits is 38400, while the sum is 31.

The square root of 225442534 is about 15014.7438872596. The cubic root of 225442534 is about 608.6186911850.

The spelling of 225442534 in words is "two hundred twenty-five million, four hundred forty-two thousand, five hundred thirty-four".