5721165455 has 4 divisors (see below), whose sum is σ = 6865398552. Its totient is φ = 4576932360.

The previous prime is 5721165433. The next prime is 5721165467. The reversal of 5721165455 is 5545611275.

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

It is not a de Polignac number, because 5721165455 - 2¹² = 5721161359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572116541 + ... + 572116550.

It is an arithmetic number, because the mean of its divisors is an integer number (1716349638).

Almost surely, 2^5721165455 is an apocalyptic number.

5721165455 is a deficient number, since it is larger than the sum of its proper divisors (1144233097).

5721165455 is a wasteful number, since it uses less digits than its factorization.

5721165455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144233096.

The product of its digits is 210000, while the sum is 41.

The square root of 5721165455 is about 75638.3861210695. The cubic root of 5721165455 is about 1788.5242619782.

The spelling of 5721165455 in words is "five billion, seven hundred twenty-one million, one hundred sixty-five thousand, four hundred fifty-five".