1632564025 has 9 divisors (see below), whose sum is σ = 2024629933. Its totient is φ = 1305889600.

The previous prime is 1632564023. The next prime is 1632564053. The reversal of 1632564025 is 5204652361.

The square root of 1632564025 is 40405.

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 145998889 + 1486565136 = 12083^2 + 38556^2 .

It is not a de Polignac number, because 1632564025 - 2¹ = 1632564023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1632564023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 197985 + ... + 206065.

Almost surely, 2^1632564025 is an apocalyptic number.

1632564025 is the 40405-th square number.

1632564025 is the 20203-rd centered octagonal number.

It is an amenable number.

1632564025 is a deficient number, since it is larger than the sum of its proper divisors (392065908).

1632564025 is an frugal number, since it uses more digits than its factorization.

1632564025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16172 (or 8086 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The cubic root of 1632564025 is about 1177.4886802223.

It can be divided in two parts, 163256 and 4025, that added together give a square (167281 = 409²).

The spelling of 1632564025 in words is "one billion, six hundred thirty-two million, five hundred sixty-four thousand, twenty-five".