15654532225 has 12 divisors (see below), whose sum is σ = 19530714736. Its totient is φ = 12446790480.

The previous prime is 15654532217. The next prime is 15654532247. The reversal of 15654532225 is 52223545651.

It is not a de Polignac number, because 15654532225 - 2³ = 15654532217 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916727 + ... + 1924876.

Almost surely, 2^15654532225 is an apocalyptic number.

It is an amenable number.

15654532225 is a deficient number, since it is larger than the sum of its proper divisors (3876182511).

15654532225 is a wasteful number, since it uses less digits than its factorization.

15654532225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841776 (or 3841771 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The spelling of 15654532225 in words is "fifteen billion, six hundred fifty-four million, five hundred thirty-two thousand, two hundred twenty-five".