525393750 has 96 divisors (see below), whose sum is σ = 1501403904. Its totient is φ = 120060000.

The previous prime is 525393733. The next prime is 525393751. The reversal of 525393750 is 57393525.

It is a junction number, because it is equal to n+sod(n) for n = 525393699 and 525393708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525393751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129249 + ... + 133251.

It is an arithmetic number, because the mean of its divisors is an integer number (15639624).

Almost surely, 2^525393750 is an apocalyptic number.

525393750 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 525393750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750701952).

525393750 is an abundant number, since it is smaller than the sum of its proper divisors (976010154).

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

525393750 is an equidigital number, since it uses as much as digits as its factorization.

525393750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 39.

The square root of 525393750 is about 22921.4691937493. The cubic root of 525393750 is about 806.9159511944.

The spelling of 525393750 in words is "five hundred twenty-five million, three hundred ninety-three thousand, seven hundred fifty".