52649597025 has 45 divisors (see below), whose sum is σ = 97544383651. Its totient is φ = 28074278160.

The previous prime is 52649596991. The next prime is 52649597029. The reversal of 52649597025 is 52079594625.

The square root of 52649597025 is 229455.

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

52649597025 is a `hidden beast` number, since 5 + 2 + 6 + 49 + 597 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18953854929 + 33695742096 = 137673^2 + 183564^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 52649597025 - 2²¹ = 52647499873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52649597029) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 10322926 + ... + 10328024.

Almost surely, 2^52649597025 is an apocalyptic number.

52649597025 is the 229455-th square number.

52649597025 is the 114728-th centered octagonal number.

It is an amenable number.

52649597025 is a deficient number, since it is larger than the sum of its proper divisors (44894786626).

52649597025 is an frugal number, since it uses more digits than its factorization.

52649597025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220 (or 5107 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 52649597025 in words is "fifty-two billion, six hundred forty-nine million, five hundred ninety-seven thousand, twenty-five".