5091651 has 12 divisors (see below), whose sum is σ = 7511712. Its totient is φ = 3321936.

The previous prime is 5091649. The next prime is 5091659. The reversal of 5091651 is 1561905.

5091651 is a `hidden beast` number, since 5 + 0 + 9 + 1 + 651 = 666.

It is not a de Polignac number, because 5091651 - 2¹ = 5091649 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

5091651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5091659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5596 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (625976).

Almost surely, 2^5091651 is an apocalyptic number.

5091651 is a deficient number, since it is larger than the sum of its proper divisors (2420061).

5091651 is a wasteful number, since it uses less digits than its factorization.

5091651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12090 (or 12087 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 5091651 is about 2256.4687013119. The cubic root of 5091651 is about 172.0360817579.

The spelling of 5091651 in words is "five million, ninety-one thousand, six hundred fifty-one".