525665460 has 48 divisors (see below), whose sum is σ = 1535861376. Its totient is φ = 134082432.

The previous prime is 525665431. The next prime is 525665461. The reversal of 525665460 is 64566525.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525665461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189079 + ... + 191838.

It is an arithmetic number, because the mean of its divisors is an integer number (31997112).

Almost surely, 2^525665460 is an apocalyptic number.

It is an amenable number.

525665460 is an abundant number, since it is smaller than the sum of its proper divisors (1010195916).

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

525665460 is a wasteful number, since it uses less digits than its factorization.

525665460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380952 (or 380950 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 525665460 is about 22927.3954037523. The cubic root of 525665460 is about 807.0550274263.

The spelling of 525665460 in words is "five hundred twenty-five million, six hundred sixty-five thousand, four hundred sixty".