5311145501 has 4 divisors (see below), whose sum is σ = 5454690012. Its totient is φ = 5167600992.

The previous prime is 5311145479. The next prime is 5311145507. The reversal of 5311145501 is 1055411135.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4784488900 + 526656601 = 69170^2 + 22949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5311145501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311145507) 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, 71772200 + ... + 71772273.

It is an arithmetic number, because the mean of its divisors is an integer number (1363672503).

Almost surely, 2^5311145501 is an apocalyptic number.

It is an amenable number.

5311145501 is a deficient number, since it is larger than the sum of its proper divisors (143544511).

5311145501 is a wasteful number, since it uses less digits than its factorization.

5311145501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143544510.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 5311145501 is about 72877.6063067387. The cubic root of 5311145501 is about 1744.7347047037.

Adding to 5311145501 its reverse (1055411135), we get a palindrome (6366556636).

The spelling of 5311145501 in words is "five billion, three hundred eleven million, one hundred forty-five thousand, five hundred one".