525444030 has 128 divisors (see below), whose sum is σ = 1452816000. Its totient is φ = 135032832.

The previous prime is 525443969. The next prime is 525444071. The reversal of 525444030 is 30444525.

525444030 is a `hidden beast` number, since 5 + 254 + 4 + 403 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 525443985 and 525444003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1488334 + ... + 1488686.

It is an arithmetic number, because the mean of its divisors is an integer number (11350125).

Almost surely, 2^525444030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525444030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726408000).

525444030 is an abundant number, since it is smaller than the sum of its proper divisors (927371970).

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

525444030 is a wasteful number, since it uses less digits than its factorization.

525444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 525444030 is about 22922.5659558436. The cubic root of 525444030 is about 806.9416908990.

Adding to 525444030 its reverse (30444525), we get a palindrome (555888555).

It can be divided in two parts, 5254 and 44030, that added together give a square (49284 = 222²).

The spelling of 525444030 in words is "five hundred twenty-five million, four hundred forty-four thousand, thirty".