125552099 has 4 divisors (see below), whose sum is σ = 125601480. Its totient is φ = 125502720.

The previous prime is 125552081. The next prime is 125552149. The reversal of 125552099 is 990255521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990255521 = 281 ⋅3524041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125552099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125552039) 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, 20657 + ... + 26034.

It is an arithmetic number, because the mean of its divisors is an integer number (31400370).

Almost surely, 2^125552099 is an apocalyptic number.

125552099 is a deficient number, since it is larger than the sum of its proper divisors (49381).

125552099 is an equidigital number, since it uses as much as digits as its factorization.

125552099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49380.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 125552099 is about 11205.0033020968. The cubic root of 125552099 is about 500.7350508709.

The spelling of 125552099 in words is "one hundred twenty-five million, five hundred fifty-two thousand, ninety-nine".