125925281 has 4 divisors (see below), whose sum is σ = 125975232. Its totient is φ = 125875332.

The previous prime is 125925277. The next prime is 125925287. The reversal of 125925281 is 182529521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182529521 = 887 ⋅205783.

It is a cyclic number.

It is not a de Polignac number, because 125925281 - 2² = 125925277 is a prime.

It is a super-2 number, since 2×125925281² = 31714352789857922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125925287) 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, 20981 + ... + 26306.

It is an arithmetic number, because the mean of its divisors is an integer number (31493808).

Almost surely, 2^125925281 is an apocalyptic number.

It is an amenable number.

125925281 is a deficient number, since it is larger than the sum of its proper divisors (49951).

125925281 is an equidigital number, since it uses as much as digits as its factorization.

125925281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49950.

The product of its digits is 14400, while the sum is 35.

The square root of 125925281 is about 11221.6434179669. The cubic root of 125925281 is about 501.2306763860.

The spelling of 125925281 in words is "one hundred twenty-five million, nine hundred twenty-five thousand, two hundred eighty-one".