33525130 has 16 divisors (see below), whose sum is σ = 60900840. Its totient is φ = 13286592.

The previous prime is 33525091. The next prime is 33525137. The reversal of 33525130 is 3152533.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28313041 + 5212089 = 5321^2 + 2283^2 .

It is a super-2 number, since 2×33525130² = 2247868683033800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33525137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14289 + ... + 16468.

Almost surely, 2^33525130 is an apocalyptic number.

33525130 is a deficient number, since it is larger than the sum of its proper divisors (27375710).

33525130 is a wasteful number, since it uses less digits than its factorization.

33525130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30873.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 33525130 is about 5790.0889457762. The cubic root of 33525130 is about 322.4458735756.

Adding to 33525130 its reverse (3152533), we get a palindrome (36677663).

The spelling of 33525130 in words is "thirty-three million, five hundred twenty-five thousand, one hundred thirty".