126264553 has 4 divisors (see below), whose sum is σ = 126344068. Its totient is φ = 126185040.

The previous prime is 126264511. The next prime is 126264613. The reversal of 126264553 is 355462621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101344489 + 24920064 = 10067^2 + 4992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126264553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126264353) 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, 37326 + ... + 40567.

It is an arithmetic number, because the mean of its divisors is an integer number (31586017).

Almost surely, 2^126264553 is an apocalyptic number.

It is an amenable number.

126264553 is a deficient number, since it is larger than the sum of its proper divisors (79515).

126264553 is an equidigital number, since it uses as much as digits as its factorization.

126264553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79514.

The product of its digits is 43200, while the sum is 34.

The square root of 126264553 is about 11236.7501084611. The cubic root of 126264553 is about 501.6804167390.

The spelling of 126264553 in words is "one hundred twenty-six million, two hundred sixty-four thousand, five hundred fifty-three".