53433450551 has 16 divisors (see below), whose sum is σ = 57659639520. Its totient is φ = 49223946240.

The previous prime is 53433450547. The next prime is 53433450611. The reversal of 53433450551 is 15505433435.

It is a cyclic number.

It is not a de Polignac number, because 53433450551 - 2² = 53433450547 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 (53433450451) 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, 20605511 + ... + 20608103.

It is an arithmetic number, because the mean of its divisors is an integer number (3603727470).

Almost surely, 2^53433450551 is an apocalyptic number.

53433450551 is a deficient number, since it is larger than the sum of its proper divisors (4226188969).

53433450551 is a wasteful number, since it uses less digits than its factorization.

53433450551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 53433450551 its reverse (15505433435), we get a palindrome (68938883986).

The spelling of 53433450551 in words is "fifty-three billion, four hundred thirty-three million, four hundred fifty thousand, five hundred fifty-one".