525042101 has 2 divisors, whose sum is σ = 525042102. Its totient is φ = 525042100.

The previous prime is 525042097. The next prime is 525042107. The reversal of 525042101 is 101240525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344139601 + 180902500 = 18551^2 + 13450^2 .

It is a cyclic number.

It is not a de Polignac number, because 525042101 - 2² = 525042097 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525042107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262521050 + 262521051.

It is an arithmetic number, because the mean of its divisors is an integer number (262521051).

Almost surely, 2^525042101 is an apocalyptic number.

It is an amenable number.

525042101 is a deficient number, since it is larger than the sum of its proper divisors (1).

525042101 is an equidigital number, since it uses as much as digits as its factorization.

525042101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 525042101 is about 22913.7971755011. The cubic root of 525042101 is about 806.7358865500.

Adding to 525042101 its reverse (101240525), we get a palindrome (626282626).

The spelling of 525042101 in words is "five hundred twenty-five million, forty-two thousand, one hundred one".