15375770228025 has 81 divisors (see below), whose sum is σ = 27929936612487. Its totient is φ = 8085817785600.

The previous prime is 15375770228003. The next prime is 15375770228033. The reversal of 15375770228025 is 52082207757351.

The square root of 15375770228025 is 3921195.

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

15375770228025 is a `hidden beast` number, since 1 + 537 + 5 + 7 + 7 + 0 + 2 + 2 + 80 + 25 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 2441159381241 + 12934610846784 = 1562421^2 + 3596472^2 .

It is not a de Polignac number, because 15375770228025 - 2¹⁵ = 15375770195257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4293706735 + ... + 4293710315.

Almost surely, 2^{15375770228025} is an apocalyptic number.

15375770228025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15375770228025 is the 3921195-th square number.

15375770228025 is the 1960598-th centered octagonal number.

It is an amenable number.

15375770228025 is a deficient number, since it is larger than the sum of its proper divisors (12554166384462).

15375770228025 is an frugal number, since it uses more digits than its factorization.

15375770228025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 54.

The spelling of 15375770228025 in words is "fifteen trillion, three hundred seventy-five billion, seven hundred seventy million, two hundred twenty-eight thousand, twenty-five".