525347953 has 4 divisors (see below), whose sum is σ = 565759348. Its totient is φ = 484936560.

The previous prime is 525347939. The next prime is 525347969. The reversal of 525347953 is 359743525.

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

It can be written as a sum of positive squares in 2 ways, for example, as 232013824 + 293334129 = 15232^2 + 17127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525347953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525347903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20205678 + ... + 20205703.

It is an arithmetic number, because the mean of its divisors is an integer number (141439837).

Almost surely, 2^525347953 is an apocalyptic number.

It is an amenable number.

525347953 is a deficient number, since it is larger than the sum of its proper divisors (40411395).

525347953 is a wasteful number, since it uses less digits than its factorization.

525347953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40411394.

The product of its digits is 567000, while the sum is 43.

The square root of 525347953 is about 22920.4701740606. The cubic root of 525347953 is about 806.8925050307.

The spelling of 525347953 in words is "five hundred twenty-five million, three hundred forty-seven thousand, nine hundred fifty-three".