225445654645 has 32 divisors (see below), whose sum is σ = 275904921600. Its totient is φ = 176818694976.

The previous prime is 225445654633. The next prime is 225445654691. The reversal of 225445654645 is 546456544522.

It is not a de Polignac number, because 225445654645 - 2¹⁹ = 225445130357 is a prime.

It is a super-2 number, since 2×225445654645² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225445654592 and 225445654601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28464996 + ... + 28472914.

It is an arithmetic number, because the mean of its divisors is an integer number (8622028800).

Almost surely, 2^225445654645 is an apocalyptic number.

It is an amenable number.

225445654645 is a deficient number, since it is larger than the sum of its proper divisors (50459266955).

225445654645 is a wasteful number, since it uses less digits than its factorization.

225445654645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577.

The product of its digits is 23040000, while the sum is 52.

The spelling of 225445654645 in words is "two hundred twenty-five billion, four hundred forty-five million, six hundred fifty-four thousand, six hundred forty-five".