525437440 has 160 divisors (see below), whose sum is σ = 1407124224. Its totient is φ = 186531840.

The previous prime is 525437413. The next prime is 525437447. The reversal of 525437440 is 44734525.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 525437396 and 525437405.

It is not an unprimeable number, because it can be changed into a prime (525437447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1323322 + ... + 1323718.

Almost surely, 2^525437440 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 525437440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703562112).

525437440 is an abundant number, since it is smaller than the sum of its proper divisors (881686784).

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

525437440 is a wasteful number, since it uses less digits than its factorization.

525437440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 525437440 is about 22922.4222105780. The cubic root of 525437440 is about 806.9383173916.

The spelling of 525437440 in words is "five hundred twenty-five million, four hundred thirty-seven thousand, four hundred forty".