45387775332025 has 81 divisors (see below), whose sum is σ = 68447992115181. Its totient is φ = 29766312871680.

The previous prime is 45387775332019. The next prime is 45387775332041. The reversal of 45387775332025 is 52023357778354.

The square root of 45387775332025 is 6737045.

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

It can be written as a sum of positive squares in 4 ways, for example, as 365876185129 + 45021899146896 = 604877^2 + 6709836^2 .

It is not a de Polignac number, because 45387775332025 - 2¹³ = 45387775323833 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, 5423317041 + ... + 5423325409.

Almost surely, 2^{45387775332025} is an apocalyptic number.

45387775332025 is the 6737045-th square number.

45387775332025 is the 3368523-rd centered octagonal number.

It is an amenable number.

45387775332025 is a deficient number, since it is larger than the sum of its proper divisors (23060216783156).

45387775332025 is an frugal number, since it uses more digits than its factorization.

45387775332025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16808 (or 8404 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 61.

The spelling of 45387775332025 in words is "forty-five trillion, three hundred eighty-seven billion, seven hundred seventy-five million, three hundred thirty-two thousand, twenty-five".