52581265 has 32 divisors (see below), whose sum is σ = 73635840. Its totient is φ = 35640000.

The previous prime is 52581259. The next prime is 52581271. The reversal of 52581265 is 56218525.

It is an interprime number because it is at equal distance from previous prime (52581259) and next prime (52581271).

It is not a de Polignac number, because 52581265 - 2⁵ = 52581233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52581265.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 69640 + ... + 70390.

It is an arithmetic number, because the mean of its divisors is an integer number (2301120).

Almost surely, 2^52581265 is an apocalyptic number.

52581265 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52581265 is a deficient number, since it is larger than the sum of its proper divisors (21054575).

52581265 is a wasteful number, since it uses less digits than its factorization.

52581265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its digits is 24000, while the sum is 34.

The square root of 52581265 is about 7251.2940224487. The cubic root of 52581265 is about 374.6367207815.

The spelling of 52581265 in words is "fifty-two million, five hundred eighty-one thousand, two hundred sixty-five".