52661025 has 36 divisors (see below), whose sum is σ = 96533008. Its totient is φ = 27427680.

The previous prime is 52661023. The next prime is 52661137. The reversal of 52661025 is 52016625.

52661025 is a `hidden beast` number, since 5 + 26 + 610 + 25 = 666.

It is not a de Polignac number, because 52661025 - 2¹ = 52661023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52661025.

It is not an unprimeable number, because it can be changed into a prime (52661023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6954 + ... + 12396.

Almost surely, 2^52661025 is an apocalyptic number.

It is an amenable number.

52661025 is a deficient number, since it is larger than the sum of its proper divisors (43871983).

52661025 is a wasteful number, since it uses less digits than its factorization.

52661025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5502 (or 5494 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52661025 is about 7256.7916464509. The cubic root of 52661025 is about 374.8260526587.

The spelling of 52661025 in words is "fifty-two million, six hundred sixty-one thousand, twenty-five".