1525620253 has 2 divisors, whose sum is σ = 1525620254. Its totient is φ = 1525620252.

The previous prime is 1525620233. The next prime is 1525620287. The reversal of 1525620253 is 3520265251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169845209 + 355775044 = 34203^2 + 18862^2 .

It is an emirp because it is prime and its reverse (3520265251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1525620253 - 2⁹ = 1525619741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525620203) 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 as a sum of consecutive naturals, namely, 762810126 + 762810127.

It is an arithmetic number, because the mean of its divisors is an integer number (762810127).

Almost surely, 2^1525620253 is an apocalyptic number.

It is an amenable number.

1525620253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525620253 is an equidigital number, since it uses as much as digits as its factorization.

1525620253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1525620253 is about 39059.1890980855. The cubic root of 1525620253 is about 1151.1947892491.

The spelling of 1525620253 in words is "one billion, five hundred twenty-five million, six hundred twenty thousand, two hundred fifty-three".