5351639081 has 4 divisors (see below), whose sum is σ = 5383684992. Its totient is φ = 5319593172.

The previous prime is 5351639053. The next prime is 5351639107. The reversal of 5351639081 is 1809361535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5351639081 - 2³⁰ = 4277897257 is a prime.

It is a super-2 number, since 2×5351639081² = 57280081706573049122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5351639681) 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, 16022705 + ... + 16023038.

It is an arithmetic number, because the mean of its divisors is an integer number (1345921248).

Almost surely, 2^5351639081 is an apocalyptic number.

It is an amenable number.

5351639081 is a deficient number, since it is larger than the sum of its proper divisors (32045911).

5351639081 is a wasteful number, since it uses less digits than its factorization.

5351639081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32045910.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 5351639081 is about 73154.8978606354. The cubic root of 5351639081 is about 1749.1575897588.

The spelling of 5351639081 in words is "five billion, three hundred fifty-one million, six hundred thirty-nine thousand, eighty-one".