5156591001 has 4 divisors (see below), whose sum is σ = 6875454672. Its totient is φ = 3437727332.

The previous prime is 5156590997. The next prime is 5156591021. The reversal of 5156591001 is 1001956515.

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 5156591001 - 2² = 5156590997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5156591021) 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, 859431831 + ... + 859431836.

It is an arithmetic number, because the mean of its divisors is an integer number (1718863668).

Almost surely, 2^5156591001 is an apocalyptic number.

It is an amenable number.

5156591001 is a deficient number, since it is larger than the sum of its proper divisors (1718863671).

5156591001 is a wasteful number, since it uses less digits than its factorization.

5156591001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718863670.

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 5156591001 is about 71809.4074686597. The cubic root of 5156591001 is about 1727.6438908852.

The spelling of 5156591001 in words is "five billion, one hundred fifty-six million, five hundred ninety-one thousand, one".