1033221525 has 96 divisors (see below), whose sum is σ = 2087866368. Its totient is φ = 440563200.

The previous prime is 1033221523. The next prime is 1033221533. The reversal of 1033221525 is 5251223301.

It is a happy number.

It is not a de Polignac number, because 1033221525 - 2¹ = 1033221523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1033221495 and 1033221504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033221523) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 494032 + ... + 496118.

It is an arithmetic number, because the mean of its divisors is an integer number (21748608).

Almost surely, 2^1033221525 is an apocalyptic number.

1033221525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1033221525 is an abundant number, since it is smaller than the sum of its proper divisors (1054644843).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1033221525 is a wasteful number, since it uses less digits than its factorization.

1033221525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1033221525 is about 32143.7633919863. The cubic root of 1033221525 is about 1010.9534260690.

Adding to 1033221525 its reverse (5251223301), we get a palindrome (6284444826).

The spelling of 1033221525 in words is "one billion, thirty-three million, two hundred twenty-one thousand, five hundred twenty-five".