53313203551 has 4 divisors (see below), whose sum is σ = 53912228400. Its totient is φ = 52714178704.

The previous prime is 53313203519. The next prime is 53313203597. The reversal of 53313203551 is 15530231335.

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

It is a cyclic number.

It is not a de Polignac number, because 53313203551 - 2⁵ = 53313203519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53313203851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299512291 + ... + 299512468.

It is an arithmetic number, because the mean of its divisors is an integer number (13478057100).

Almost surely, 2^53313203551 is an apocalyptic number.

53313203551 is a deficient number, since it is larger than the sum of its proper divisors (599024849).

53313203551 is an equidigital number, since it uses as much as digits as its factorization.

53313203551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599024848.

The product of its (nonzero) digits is 20250, while the sum is 31.

Adding to 53313203551 its reverse (15530231335), we get a palindrome (68843434886).

The spelling of 53313203551 in words is "fifty-three billion, three hundred thirteen million, two hundred three thousand, five hundred fifty-one".