1013565253 has 2 divisors, whose sum is σ = 1013565254. Its totient is φ = 1013565252.

The previous prime is 1013565247. The next prime is 1013565263. The reversal of 1013565253 is 3525653101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964537249 + 49028004 = 31057^2 + 7002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013565253 - 2²⁵ = 980010821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013565233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506782626 + 506782627.

It is an arithmetic number, because the mean of its divisors is an integer number (506782627).

Almost surely, 2^1013565253 is an apocalyptic number.

It is an amenable number.

1013565253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013565253 is an equidigital number, since it uses as much as digits as its factorization.

1013565253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1013565253 is about 31836.5395889692. The cubic root of 1013565253 is about 1004.5014574761.

The spelling of 1013565253 in words is "one billion, thirteen million, five hundred sixty-five thousand, two hundred fifty-three".