53450104451 has 4 divisors (see below), whose sum is σ = 54247867272. Its totient is φ = 52652341632.

The previous prime is 53450104397. The next prime is 53450104457. The reversal of 53450104451 is 15440105435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53450104451 is a prime.

It is a super-2 number, since 2×53450104451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53450104457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398881310 + ... + 398881443.

It is an arithmetic number, because the mean of its divisors is an integer number (13561966818).

Almost surely, 2^53450104451 is an apocalyptic number.

53450104451 is a deficient number, since it is larger than the sum of its proper divisors (797762821).

53450104451 is an equidigital number, since it uses as much as digits as its factorization.

53450104451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797762820.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 53450104451 its reverse (15440105435), we get a palindrome (68890209886).

The spelling of 53450104451 in words is "fifty-three billion, four hundred fifty million, one hundred four thousand, four hundred fifty-one".