225784531507 has 4 divisors (see below), whose sum is σ = 225965305000. Its totient is φ = 225603758016.

The previous prime is 225784531499. The next prime is 225784531519. The reversal of 225784531507 is 705135487522.

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

It is a cyclic number.

It is not a de Polignac number, because 225784531507 - 2³ = 225784531499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225784531547) 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, 90384873 + ... + 90387370.

It is an arithmetic number, because the mean of its divisors is an integer number (56491326250).

Almost surely, 2^225784531507 is an apocalyptic number.

225784531507 is a deficient number, since it is larger than the sum of its proper divisors (180773493).

225784531507 is a wasteful number, since it uses less digits than its factorization.

225784531507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180773492.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 225784531507 in words is "two hundred twenty-five billion, seven hundred eighty-four million, five hundred thirty-one thousand, five hundred seven".