1523722253 has 2 divisors, whose sum is σ = 1523722254. Its totient is φ = 1523722252.

The previous prime is 1523722139. The next prime is 1523722279. The reversal of 1523722253 is 3522273251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1486719364 + 37002889 = 38558^2 + 6083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523722253 is a prime.

It is a super-3 number, since 3×1523722253³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523722283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761861126 + 761861127.

It is an arithmetic number, because the mean of its divisors is an integer number (761861127).

Almost surely, 2^1523722253 is an apocalyptic number.

It is an amenable number.

1523722253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523722253 is an equidigital number, since it uses as much as digits as its factorization.

1523722253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 1523722253 is about 39034.8850773254. The cubic root of 1523722253 is about 1150.7171967361.

The spelling of 1523722253 in words is "one billion, five hundred twenty-three million, seven hundred twenty-two thousand, two hundred fifty-three".