4521553 has 2 divisors, whose sum is σ = 4521554. Its totient is φ = 4521552.

The previous prime is 4521551. The next prime is 4521557. The reversal of 4521553 is 3551254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4460544 + 61009 = 2112^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521553 - 2¹ = 4521551 is a prime.

Together with 4521551, it forms a pair of twin primes.

4521553 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4521551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260776 + 2260777.

It is an arithmetic number, because the mean of its divisors is an integer number (2260777).

Almost surely, 2^4521553 is an apocalyptic number.

It is an amenable number.

4521553 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521553 is an equidigital number, since it uses as much as digits as its factorization.

4521553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 25.

The square root of 4521553 is about 2126.3943660572. The cubic root of 4521553 is about 165.3595221515.

Subtracting from 4521553 its reverse (3551254), we obtain a cube (970299 = 99³).

The spelling of 4521553 in words is "four million, five hundred twenty-one thousand, five hundred fifty-three".