20125533 has 8 divisors (see below), whose sum is σ = 26889408. Its totient is φ = 13389344.

The previous prime is 20125519. The next prime is 20125537. The reversal of 20125533 is 33552102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20125533 - 2⁴ = 20125517 is a prime.

20125533 is a modest number, since divided by 5533 gives 2012 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125537) 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, 5160 + ... + 8177.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^20125533 is an apocalyptic number.

It is an amenable number.

20125533 is a deficient number, since it is larger than the sum of its proper divisors (6763875).

20125533 is a wasteful number, since it uses less digits than its factorization.

20125533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13843.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 20125533 is about 4486.1490166957. The cubic root of 20125533 is about 272.0084925621.

Adding to 20125533 its reverse (33552102), we get a palindrome (53677635).

The spelling of 20125533 in words is "twenty million, one hundred twenty-five thousand, five hundred thirty-three".