125225513 has 4 divisors (see below), whose sum is σ = 143114880. Its totient is φ = 107336148.

The previous prime is 125225489. The next prime is 125225537. The reversal of 125225513 is 315522521.

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.

It is an interprime number because it is at equal distance from previous prime (125225489) and next prime (125225537).

It is a cyclic number.

It is not a de Polignac number, because 125225513 - 2¹⁸ = 124963369 is a prime.

It is a super-2 number, since 2×125225513² = 31362858212226338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125221513) 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, 8944673 + ... + 8944686.

It is an arithmetic number, because the mean of its divisors is an integer number (35778720).

Almost surely, 2^125225513 is an apocalyptic number.

It is an amenable number.

125225513 is a deficient number, since it is larger than the sum of its proper divisors (17889367).

125225513 is an equidigital number, since it uses as much as digits as its factorization.

125225513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17889366.

The product of its digits is 3000, while the sum is 26.

The square root of 125225513 is about 11190.4205908447. The cubic root of 125225513 is about 500.3005033593.

The spelling of 125225513 in words is "one hundred twenty-five million, two hundred twenty-five thousand, five hundred thirteen".