7455012553 has 4 divisors (see below), whose sum is σ = 7455809988. Its totient is φ = 7454215120.

The previous prime is 7455012479. The next prime is 7455012569. The reversal of 7455012553 is 3552105547.

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 2759611024 + 4695401529 = 52532^2 + 68523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7455012553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7455012853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384526 + ... + 403447.

It is an arithmetic number, because the mean of its divisors is an integer number (1863952497).

Almost surely, 2^7455012553 is an apocalyptic number.

It is an amenable number.

7455012553 is a deficient number, since it is larger than the sum of its proper divisors (797435).

7455012553 is an equidigital number, since it uses as much as digits as its factorization.

7455012553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797434.

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 7455012553 is about 86342.4145654961. The cubic root of 7455012553 is about 1953.5121934677.

The spelling of 7455012553 in words is "seven billion, four hundred fifty-five million, twelve thousand, five hundred fifty-three".