53405422452 has 144 divisors (see below), whose sum is σ = 146145039040. Its totient is φ = 16386333696.

The previous prime is 53405422403. The next prime is 53405422481. The reversal of 53405422452 is 25422450435.

53405422452 is a `hidden beast` number, since 5 + 3 + 40 + 542 + 24 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32823663 + ... + 32825289.

Almost surely, 2^53405422452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53405422452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73072519520).

53405422452 is an abundant number, since it is smaller than the sum of its proper divisors (92739616588).

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

53405422452 is a wasteful number, since it uses less digits than its factorization.

53405422452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 53405422452 its reverse (25422450435), we get a palindrome (78827872887).

The spelling of 53405422452 in words is "fifty-three billion, four hundred five million, four hundred twenty-two thousand, four hundred fifty-two".