1000425523 has 4 divisors (see below), whose sum is σ = 1000505800. Its totient is φ = 1000345248.

The previous prime is 1000425511. The next prime is 1000425527. The reversal of 1000425523 is 3255240001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3255240001 = 13 ⋅250403077.

It is a cyclic number.

It is not a de Polignac number, because 1000425523 - 2⁹ = 1000425011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000425494 and 1000425503.

It is not an unprimeable number, because it can be changed into a prime (1000425527) 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, 16998 + ... + 47851.

It is an arithmetic number, because the mean of its divisors is an integer number (250126450).

Almost surely, 2^1000425523 is an apocalyptic number.

1000425523 is a deficient number, since it is larger than the sum of its proper divisors (80277).

1000425523 is an equidigital number, since it uses as much as digits as its factorization.

1000425523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80276.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1000425523 is about 31629.5039954787. The cubic root of 1000425523 is about 1000.1418208859.

Adding to 1000425523 its reverse (3255240001), we get a palindrome (4255665524).

The spelling of 1000425523 in words is "one billion, four hundred twenty-five thousand, five hundred twenty-three".