525403350 has 72 divisors (see below), whose sum is σ = 1417924872. Its totient is φ = 139478400.

The previous prime is 525403349. The next prime is 525403379. The reversal of 525403350 is 53304525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102345 + ... + 107355.

It is an arithmetic number, because the mean of its divisors is an integer number (19693401).

Almost surely, 2^525403350 is an apocalyptic number.

525403350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 525403350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708962436).

525403350 is an abundant number, since it is smaller than the sum of its proper divisors (892521522).

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

525403350 is a wasteful number, since it uses less digits than its factorization.

525403350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5254 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 525403350 is about 22921.6786034531. The cubic root of 525403350 is about 806.9208658233.

Adding to 525403350 its reverse (53304525), we get a palindrome (578707875).

The spelling of 525403350 in words is "five hundred twenty-five million, four hundred three thousand, three hundred fifty".