525043400 has 96 divisors (see below), whose sum is σ = 1406576640. Its totient is φ = 178536960.

The previous prime is 525043399. The next prime is 525043429. The reversal of 525043400 is 4340525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176324 + ... + 179276.

It is an arithmetic number, because the mean of its divisors is an integer number (14651840).

Almost surely, 2^525043400 is an apocalyptic number.

525043400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525043400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703288320).

525043400 is an abundant number, since it is smaller than the sum of its proper divisors (881533240).

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

525043400 is a wasteful number, since it uses less digits than its factorization.

525043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 525043400 is about 22913.8255208509. The cubic root of 525043400 is about 806.7365518611.

Adding to 525043400 its reverse (4340525), we get a palindrome (529383925).

The spelling of 525043400 in words is "five hundred twenty-five million, forty-three thousand, four hundred".