525268240 has 120 divisors (see below), whose sum is σ = 1451371392. Its totient is φ = 176198400.

The previous prime is 525268231. The next prime is 525268241. The reversal of 525268240 is 42862525.

It is a junction number, because it is equal to n+sod(n) for n = 525268196 and 525268205.

It is not an unprimeable number, because it can be changed into a prime (525268241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182815 + ... + 185665.

Almost surely, 2^525268240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525268240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725685696).

525268240 is an abundant number, since it is smaller than the sum of its proper divisors (926103152).

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

525268240 is a wasteful number, since it uses less digits than its factorization.

525268240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 525268240 is about 22918.7312039737. The cubic root of 525268240 is about 806.8516920322.

The spelling of 525268240 in words is "five hundred twenty-five million, two hundred sixty-eight thousand, two hundred forty".