525061428 has 72 divisors (see below), whose sum is σ = 1311075360. Its totient is φ = 163080000.

The previous prime is 525061423. The next prime is 525061441. The reversal of 525061428 is 824160525.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525061423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3477153 + ... + 3477303.

It is an arithmetic number, because the mean of its divisors is an integer number (18209380).

Almost surely, 2^525061428 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 525061428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655537680).

525061428 is an abundant number, since it is smaller than the sum of its proper divisors (786013932).

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

525061428 is a wasteful number, since it uses less digits than its factorization.

525061428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 525061428 is about 22914.2189044270. The cubic root of 525061428 is about 806.7457851804.

The spelling of 525061428 in words is "five hundred twenty-five million, sixty-one thousand, four hundred twenty-eight".