5155722571 has 4 divisors (see below), whose sum is σ = 5281471944. Its totient is φ = 5029973200.

The previous prime is 5155722557. The next prime is 5155722613. The reversal of 5155722571 is 1752275515.

It is a happy number.

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 5155722571 - 2⁷ = 5155722443 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5155722521) 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, 62874625 + ... + 62874706.

It is an arithmetic number, because the mean of its divisors is an integer number (1320367986).

Almost surely, 2^5155722571 is an apocalyptic number.

5155722571 is a deficient number, since it is larger than the sum of its proper divisors (125749373).

5155722571 is a wasteful number, since it uses less digits than its factorization.

5155722571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125749372.

The product of its digits is 122500, while the sum is 40.

The square root of 5155722571 is about 71803.3604436450. The cubic root of 5155722571 is about 1727.5469003207.

The spelling of 5155722571 in words is "five billion, one hundred fifty-five million, seven hundred twenty-two thousand, five hundred seventy-one".