253430502113511 has 20 divisors (see below), whose sum is σ = 378613778781744. Its totient is φ = 168939203472000.

The previous prime is 253430502113489. The next prime is 253430502113519. The reversal of 253430502113511 is 115311205034352.

It is a happy number.

253430502113511 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 3 + 0 + 502 + 1 + 135 + 11 = 666.

It is not a de Polignac number, because 253430502113511 - 2²¹ = 253430500016359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253430502113519) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 132979515 + ... + 134871836.

Almost surely, 2^{253430502113511} is an apocalyptic number.

253430502113511 is a deficient number, since it is larger than the sum of its proper divisors (125183276668233).

253430502113511 is a wasteful number, since it uses less digits than its factorization.

253430502113511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267863044 (or 267863035 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 253430502113511 its reverse (115311205034352), we get a palindrome (368741707147863).

The spelling of 253430502113511 in words is "two hundred fifty-three trillion, four hundred thirty billion, five hundred two million, one hundred thirteen thousand, five hundred eleven".