125533001 has 16 divisors (see below), whose sum is σ = 139771008. Its totient is φ = 111792000.

The previous prime is 125532997. The next prime is 125533003. The reversal of 125533001 is 100335521.

It is a cyclic number.

It is not a de Polignac number, because 125533001 - 2² = 125532997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125533003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113885 + ... + 114981.

It is an arithmetic number, because the mean of its divisors is an integer number (8735688).

Almost surely, 2^125533001 is an apocalyptic number.

125533001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125533001 is a deficient number, since it is larger than the sum of its proper divisors (14238007).

125533001 is a wasteful number, since it uses less digits than its factorization.

125533001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 125533001 is about 11204.1510611023. The cubic root of 125533001 is about 500.7096602880.

Adding to 125533001 its reverse (100335521), we get a palindrome (225868522).

The spelling of 125533001 in words is "one hundred twenty-five million, five hundred thirty-three thousand, one".