825525503 has 4 divisors (see below), whose sum is σ = 900573288. Its totient is φ = 750477720.

The previous prime is 825525479. The next prime is 825525511. The reversal of 825525503 is 305525528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825525503 is a prime.

It is a super-2 number, since 2×825525503² = 1362984712206806018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825525523) 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, 37523876 + ... + 37523897.

It is an arithmetic number, because the mean of its divisors is an integer number (225143322).

Almost surely, 2^825525503 is an apocalyptic number.

825525503 is a deficient number, since it is larger than the sum of its proper divisors (75047785).

825525503 is a wasteful number, since it uses less digits than its factorization.

825525503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75047784.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 825525503 is about 28731.9596094663. The cubic root of 825525503 is about 938.0878221199.

The spelling of 825525503 in words is "eight hundred twenty-five million, five hundred twenty-five thousand, five hundred three".