15025273561 has 2 divisors, whose sum is σ = 15025273562. Its totient is φ = 15025273560.

The previous prime is 15025273553. The next prime is 15025273577. The reversal of 15025273561 is 16537252051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9116430400 + 5908843161 = 95480^2 + 76869^2 .

It is a cyclic number.

It is not a de Polignac number, because 15025273561 - 2³ = 15025273553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15025273561.

It is not a weakly prime, because it can be changed into another prime (15025273061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7512636780 + 7512636781.

It is an arithmetic number, because the mean of its divisors is an integer number (7512636781).

Almost surely, 2^15025273561 is an apocalyptic number.

It is an amenable number.

15025273561 is a deficient number, since it is larger than the sum of its proper divisors (1).

15025273561 is an equidigital number, since it uses as much as digits as its factorization.

15025273561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 15025273561 in words is "fifteen billion, twenty-five million, two hundred seventy-three thousand, five hundred sixty-one".