15608754225 has 27 divisors (see below), whose sum is σ = 27960370113. Its totient is φ = 8323669440.

The previous prime is 15608754181. The next prime is 15608754233. The reversal of 15608754225 is 52245780651.

The square root of 15608754225 is 124935.

It is a perfect power (a square), and thus also a powerful number.

15608754225 is a `hidden beast` number, since 1 + 5 + 6 + 0 + 87 + 542 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4530770721 + 11077983504 = 67311^2 + 105252^2 .

It is not a de Polignac number, because 15608754225 - 2¹³ = 15608746033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1869861 + ... + 1878189.

Almost surely, 2^15608754225 is an apocalyptic number.

15608754225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15608754225 is the 124935-th square number.

15608754225 is the 62468-th centered octagonal number.

It is an amenable number.

15608754225 is a deficient number, since it is larger than the sum of its proper divisors (12351615888).

15608754225 is an frugal number, since it uses more digits than its factorization.

15608754225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16674 (or 8337 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 15608754225 in words is "fifteen billion, six hundred eight million, seven hundred fifty-four thousand, two hundred twenty-five".