525148272 has 140 divisors (see below), whose sum is σ = 1664604024. Its totient is φ = 159096960.

The previous prime is 525148271. The next prime is 525148279. The reversal of 525148272 is 272841525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525148271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 126258 + ... + 130350.

Almost surely, 2^525148272 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 525148272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832302012).

525148272 is an abundant number, since it is smaller than the sum of its proper divisors (1139455752).

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

525148272 is a wasteful number, since it uses less digits than its factorization.

525148272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130 (or 4109 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 525148272 is about 22916.1138066645. The cubic root of 525148272 is about 806.7902607185.

Adding to 525148272 its reverse (272841525), we get a palindrome (797989797).

The spelling of 525148272 in words is "five hundred twenty-five million, one hundred forty-eight thousand, two hundred seventy-two".