525346553 has 4 divisors (see below), whose sum is σ = 542293248. Its totient is φ = 508399860.

The previous prime is 525346541. The next prime is 525346643. The reversal of 525346553 is 355643525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525346553 - 2¹⁰ = 525345529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522346553) 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, 8473301 + ... + 8473362.

It is an arithmetic number, because the mean of its divisors is an integer number (135573312).

Almost surely, 2^525346553 is an apocalyptic number.

It is an amenable number.

525346553 is a deficient number, since it is larger than the sum of its proper divisors (16946695).

525346553 is a wasteful number, since it uses less digits than its factorization.

525346553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16946694.

The product of its digits is 270000, while the sum is 38.

The square root of 525346553 is about 22920.4396336545. The cubic root of 525346553 is about 806.8917882673.

The spelling of 525346553 in words is "five hundred twenty-five million, three hundred forty-six thousand, five hundred fifty-three".