1533825645 has 24 divisors (see below), whose sum is σ = 2697508128. Its totient is φ = 743672160.

The previous prime is 1533825637. The next prime is 1533825653. The reversal of 1533825645 is 5465283351.

It is an interprime number because it is at equal distance from previous prime (1533825637) and next prime (1533825653).

It is not a de Polignac number, because 1533825645 - 2³ = 1533825637 is a prime.

It is a super-3 number, since 3×1533825645³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1533825597 and 1533825606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420727 + ... + 424356.

It is an arithmetic number, because the mean of its divisors is an integer number (112396172).

Almost surely, 2^1533825645 is an apocalyptic number.

1533825645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1533825645 is a deficient number, since it is larger than the sum of its proper divisors (1163682483).

1533825645 is a wasteful number, since it uses less digits than its factorization.

1533825645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845113 (or 845102 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 1533825645 is about 39164.0861632185. The cubic root of 1533825645 is about 1153.2549611971.

The spelling of 1533825645 in words is "one billion, five hundred thirty-three million, eight hundred twenty-five thousand, six hundred forty-five".