525242142 has 48 divisors (see below), whose sum is σ = 1186408080. Its totient is φ = 167731200.

The previous prime is 525242129. The next prime is 525242143. The reversal of 525242142 is 241242525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525242143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64542 + ... + 72222.

It is an arithmetic number, because the mean of its divisors is an integer number (24716835).

Almost surely, 2^525242142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525242142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593204040).

525242142 is an abundant number, since it is smaller than the sum of its proper divisors (661165938).

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

525242142 is a wasteful number, since it uses less digits than its factorization.

525242142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849 (or 7846 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 525242142 is about 22918.1618372853. The cubic root of 525242142 is about 806.8383289777.

Adding to 525242142 its reverse (241242525), we get a palindrome (766484667).

The spelling of 525242142 in words is "five hundred twenty-five million, two hundred forty-two thousand, one hundred forty-two".