53645514426 has 96 divisors (see below), whose sum is σ = 134143551360. Its totient is φ = 15177051648.

The previous prime is 53645514397. The next prime is 53645514427. The reversal of 53645514426 is 62441554635.

53645514426 is a `hidden beast` number, since 5 + 36 + 4 + 551 + 44 + 26 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53645514427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7229070 + ... + 7236486.

It is an arithmetic number, because the mean of its divisors is an integer number (1397328660).

Almost surely, 2^53645514426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53645514426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67071775680).

53645514426 is an abundant number, since it is smaller than the sum of its proper divisors (80498036934).

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

53645514426 is a wasteful number, since it uses less digits than its factorization.

53645514426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7988 (or 7985 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 53645514426 in words is "fifty-three billion, six hundred forty-five million, five hundred fourteen thousand, four hundred twenty-six".