253485267988 has 6 divisors (see below), whose sum is σ = 443599218986. Its totient is φ = 126742633992.

The previous prime is 253485267899. The next prime is 253485268039. The reversal of 253485267988 is 889762584352.

It can be written as a sum of positive squares in only one way, i.e., 232489837584 + 20995430404 = 482172^2 + 144898^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31685658495 + ... + 31685658502.

Almost surely, 2^253485267988 is an apocalyptic number.

It is an amenable number.

253485267988 is a deficient number, since it is larger than the sum of its proper divisors (190113950998).

253485267988 is a wasteful number, since it uses less digits than its factorization.

253485267988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63371317001 (or 63371316999 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 67.

The spelling of 253485267988 in words is "two hundred fifty-three billion, four hundred eighty-five million, two hundred sixty-seven thousand, nine hundred eighty-eight".