525967440 has 80 divisors (see below), whose sum is σ = 1646406528. Its totient is φ = 138889728.

The previous prime is 525967439. The next prime is 525967441. The reversal of 525967440 is 44769525.

It is an interprime number because it is at equal distance from previous prime (525967439) and next prime (525967441).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 525967392 and 525967401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525967441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14082 + ... + 35358.

Almost surely, 2^525967440 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 525967440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823203264).

525967440 is an abundant number, since it is smaller than the sum of its proper divisors (1120439088).

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

525967440 is a wasteful number, since it uses less digits than its factorization.

525967440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21396 (or 21390 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 525967440 is about 22933.9800296416. The cubic root of 525967440 is about 807.2095413022.

The spelling of 525967440 in words is "five hundred twenty-five million, nine hundred sixty-seven thousand, four hundred forty".