15485602280625 has 135 divisors (see below), whose sum is σ = 28388806274829. Its totient is φ = 8131645620000.

The previous prime is 15485602280597. The next prime is 15485602280647. The reversal of 15485602280625 is 52608220658451.

The square root of 15485602280625 is 3935175.

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

15485602280625 is a `hidden beast` number, since 1 + 5 + 4 + 8 + 5 + 6 + 0 + 2 + 2 + 8 + 0 + 625 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1214071218801 + 14271531061824 = 1101849^2 + 3777768^2 .

It is not a de Polignac number, because 15485602280625 - 2¹³ = 15485602272433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 20954806506 + ... + 20954807244.

Almost surely, 2^{15485602280625} is an apocalyptic number.

15485602280625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15485602280625 is the 3935175-th square number.

15485602280625 is the 1967588-th centered octagonal number.

It is an amenable number.

15485602280625 is a deficient number, since it is larger than the sum of its proper divisors (12903203994204).

15485602280625 is an frugal number, since it uses more digits than its factorization.

15485602280625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 54.

The spelling of 15485602280625 in words is "fifteen trillion, four hundred eighty-five billion, six hundred two million, two hundred eighty thousand, six hundred twenty-five".