525653205 has 128 divisors (see below), whose sum is σ = 1106804736. Its totient is φ = 206668800.

The previous prime is 525653189. The next prime is 525653207. The reversal of 525653205 is 502356525.

It is not a de Polignac number, because 525653205 - 2⁴ = 525653189 is a prime.

It is a super-2 number, since 2×525653205² = 552622583853544050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525653207) 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 127 ways as a sum of consecutive naturals, for example, 1897527 + ... + 1897803.

It is an arithmetic number, because the mean of its divisors is an integer number (8646912).

Almost surely, 2^525653205 is an apocalyptic number.

525653205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525653205 is an abundant number, since it is smaller than the sum of its proper divisors (581151531).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525653205 is a wasteful number, since it uses less digits than its factorization.

525653205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 525653205 is about 22927.1281454961. The cubic root of 525653205 is about 807.0487556705.

The spelling of 525653205 in words is "five hundred twenty-five million, six hundred fifty-three thousand, two hundred five".