1015263253601 has 2 divisors, whose sum is σ = 1015263253602. Its totient is φ = 1015263253600.

The previous prime is 1015263253597. The next prime is 1015263253643. The reversal of 1015263253601 is 1063523625101.

1015263253601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703251637201 + 312011616400 = 838601^2 + 558580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015263253601 - 2² = 1015263253597 is a prime.

It is a super-2 number, since 2×1015263253601² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1015263253651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507631626800 + 507631626801.

It is an arithmetic number, because the mean of its divisors is an integer number (507631626801).

Almost surely, 2^{1015263253601} is an apocalyptic number.

It is an amenable number.

1015263253601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015263253601 is an equidigital number, since it uses as much as digits as its factorization.

1015263253601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 1015263253601 its reverse (1063523625101), we get a palindrome (2078786878702).

The spelling of 1015263253601 in words is "one trillion, fifteen billion, two hundred sixty-three million, two hundred fifty-three thousand, six hundred one".