125033521 has 4 divisors (see below), whose sum is σ = 132388452. Its totient is φ = 117678592.

The previous prime is 125033473. The next prime is 125033527. The reversal of 125033521 is 125330521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125330521 = 313 ⋅400417.

It can be written as a sum of positive squares in 2 ways, for example, as 34574400 + 90459121 = 5880^2 + 9511^2 .

It is a cyclic number.

It is not a de Polignac number, because 125033521 - 2⁹ = 125033009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125033492 and 125033501.

It is not an unprimeable number, because it can be changed into a prime (125033527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3677440 + ... + 3677473.

It is an arithmetic number, because the mean of its divisors is an integer number (33097113).

Almost surely, 2^125033521 is an apocalyptic number.

It is an amenable number.

125033521 is a deficient number, since it is larger than the sum of its proper divisors (7354931).

125033521 is an equidigital number, since it uses as much as digits as its factorization.

125033521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354930.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 125033521 is about 11181.8388917029. The cubic root of 125033521 is about 500.0446906720.

The spelling of 125033521 in words is "one hundred twenty-five million, thirty-three thousand, five hundred twenty-one".