253401435111020 has 48 divisors (see below), whose sum is σ = 608167362196800. Its totient is φ = 86879932333824.

The previous prime is 253401435110977. The next prime is 253401435111043. The reversal of 253401435111020 is 20111534104352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16277282 + ... + 27780438.

It is an arithmetic number, because the mean of its divisors is an integer number (12670153379100).

Almost surely, 2^{253401435111020} is an apocalyptic number.

253401435111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253401435111020 is an abundant number, since it is smaller than the sum of its proper divisors (354765927085780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253401435111020 is a wasteful number, since it uses less digits than its factorization.

253401435111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660522 (or 11660520 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 253401435111020 its reverse (20111534104352), we get a palindrome (273512969215372).

The spelling of 253401435111020 in words is "two hundred fifty-three trillion, four hundred one billion, four hundred thirty-five million, one hundred eleven thousand, twenty".