525247342 has 4 divisors (see below), whose sum is σ = 787871016. Its totient is φ = 262623670.

The previous prime is 525247321. The next prime is 525247357. The reversal of 525247342 is 243742525.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 525247298 and 525247307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131311834 + ... + 131311837.

It is an arithmetic number, because the mean of its divisors is an integer number (196967754).

Almost surely, 2^525247342 is an apocalyptic number.

525247342 is a deficient number, since it is larger than the sum of its proper divisors (262623674).

525247342 is a wasteful number, since it uses less digits than its factorization.

525247342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262623673.

The product of its digits is 67200, while the sum is 34.

The square root of 525247342 is about 22918.2752841482. The cubic root of 525247342 is about 806.8409915881.

Adding to 525247342 its reverse (243742525), we get a palindrome (768989867).

The spelling of 525247342 in words is "five hundred twenty-five million, two hundred forty-seven thousand, three hundred forty-two".