1023403525 has 12 divisors (see below), whose sum is σ = 1285086400. Its totient is φ = 808357680.

The previous prime is 1023403489. The next prime is 1023403543. The reversal of 1023403525 is 5253043201.

It is not a de Polignac number, because 1023403525 - 2¹³ = 1023395333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1023403525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257115 + ... + 261064.

Almost surely, 2^1023403525 is an apocalyptic number.

It is an amenable number.

1023403525 is a deficient number, since it is larger than the sum of its proper divisors (261682875).

1023403525 is an equidigital number, since it uses as much as digits as its factorization.

1023403525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518268 (or 518263 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1023403525 is about 31990.6787205273. The cubic root of 1023403525 is about 1007.7410958084.

Adding to 1023403525 its reverse (5253043201), we get a palindrome (6276446726).

The spelling of 1023403525 in words is "one billion, twenty-three million, four hundred three thousand, five hundred twenty-five".