125512633 has 4 divisors (see below), whose sum is σ = 130969728. Its totient is φ = 120055540.

The previous prime is 125512627. The next prime is 125512637. The reversal of 125512633 is 336215521.

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: 336215521 = 179 ⋅1878299.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125512633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125512637) 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, 2728513 + ... + 2728558.

It is an arithmetic number, because the mean of its divisors is an integer number (32742432).

Almost surely, 2^125512633 is an apocalyptic number.

It is an amenable number.

125512633 is a deficient number, since it is larger than the sum of its proper divisors (5457095).

125512633 is an equidigital number, since it uses as much as digits as its factorization.

125512633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457094.

The product of its digits is 5400, while the sum is 28.

The square root of 125512633 is about 11203.2420753994. The cubic root of 125512633 is about 500.6825784160.

The spelling of 125512633 in words is "one hundred twenty-five million, five hundred twelve thousand, six hundred thirty-three".