1522553 has 2 divisors, whose sum is σ = 1522554. Its totient is φ = 1522552.

The previous prime is 1522541. The next prime is 1522579. The reversal of 1522553 is 3552251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769129 + 753424 = 877^2 + 868^2 .

It is an emirp because it is prime and its reverse (3552251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1522553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1522153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761276 + 761277.

It is an arithmetic number, because the mean of its divisors is an integer number (761277).

2^1522553 is an apocalyptic number.

It is an amenable number.

1522553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522553 is an equidigital number, since it uses as much as digits as its factorization.

1522553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500, while the sum is 23.

The square root of 1522553 is about 1233.9177444222. The cubic root of 1522553 is about 115.0422780910.

The spelling of 1522553 in words is "one million, five hundred twenty-two thousand, five hundred fifty-three".