53511423402 has 32 divisors (see below), whose sum is σ = 109312228800. Its totient is φ = 17458219008.

The previous prime is 53511423299. The next prime is 53511423403. The reversal of 53511423402 is 20432411535.

53511423402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53511423402² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53511423402.

It is not an unprimeable number, because it can be changed into a prime (53511423403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248983 + ... + 411114.

It is an arithmetic number, because the mean of its divisors is an integer number (3416007150).

Almost surely, 2^53511423402 is an apocalyptic number.

53511423402 is an abundant number, since it is smaller than the sum of its proper divisors (55800805398).

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

53511423402 is a wasteful number, since it uses less digits than its factorization.

53511423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660390.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 53511423402 its reverse (20432411535), we get a palindrome (73943834937).

The spelling of 53511423402 in words is "fifty-three billion, five hundred eleven million, four hundred twenty-three thousand, four hundred two".