240525520 has 40 divisors (see below), whose sum is σ = 592120584. Its totient is φ = 90550272.

The previous prime is 240525499. The next prime is 240525553. The reversal of 240525520 is 25525042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118113424 + 122412096 = 10868^2 + 11064^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×240525520³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 87069 + ... + 89788.

Almost surely, 2^240525520 is an apocalyptic number.

240525520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240525520 is an abundant number, since it is smaller than the sum of its proper divisors (351595064).

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

240525520 is a wasteful number, since it uses less digits than its factorization.

240525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176887 (or 176881 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 240525520 is about 15508.8851952679. The cubic root of 240525520 is about 621.8997574211.

The spelling of 240525520 in words is "two hundred forty million, five hundred twenty-five thousand, five hundred twenty".