125817533 has 8 divisors (see below), whose sum is σ = 127622400. Its totient is φ = 124018128.

The previous prime is 125817529. The next prime is 125817553. The reversal of 125817533 is 335718521.

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 125817533 - 2² = 125817529 is a prime.

It is a super-2 number, since 2×125817533² = 31660103220412178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125817493 and 125817502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125817553) 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, 71735 + ... + 73467.

It is an arithmetic number, because the mean of its divisors is an integer number (15952800).

Almost surely, 2^125817533 is an apocalyptic number.

It is an amenable number.

125817533 is a deficient number, since it is larger than the sum of its proper divisors (1804867).

125817533 is an equidigital number, since it uses as much as digits as its factorization.

125817533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731.

The product of its digits is 25200, while the sum is 35.

The square root of 125817533 is about 11216.8414894747. The cubic root of 125817533 is about 501.0876762053.

The spelling of 125817533 in words is "one hundred twenty-five million, eight hundred seventeen thousand, five hundred thirty-three".