15754492225 has 12 divisors (see below), whose sum is σ = 19827148144. Its totient is φ = 12415479120.

The previous prime is 15754492223. The next prime is 15754492249. The reversal of 15754492225 is 52229445751.

It is not a de Polignac number, because 15754492225 - 2¹ = 15754492223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15754492223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4701159 + ... + 4704508.

Almost surely, 2^15754492225 is an apocalyptic number.

It is an amenable number.

15754492225 is a deficient number, since it is larger than the sum of its proper divisors (4072655919).

15754492225 is an equidigital number, since it uses as much as digits as its factorization.

15754492225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405744 (or 9405739 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 46.

The spelling of 15754492225 in words is "fifteen billion, seven hundred fifty-four million, four hundred ninety-two thousand, two hundred twenty-five".