5591956 has 6 divisors (see below), whose sum is σ = 9785930. Its totient is φ = 2795976.

The previous prime is 5591941. The next prime is 5591969. The reversal of 5591956 is 6591955.

It can be written as a sum of positive squares in only one way, i.e., 5447556 + 144400 = 2334^2 + 380^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 698991 + ... + 698998.

Almost surely, 2^5591956 is an apocalyptic number.

It is an amenable number.

5591956 is a deficient number, since it is larger than the sum of its proper divisors (4193974).

5591956 is a wasteful number, since it uses less digits than its factorization.

5591956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397993 (or 1397991 counting only the distinct ones).

The product of its digits is 60750, while the sum is 40.

The square root of 5591956 is about 2364.7316972545. The cubic root of 5591956 is about 177.4957322256.

Subtracting 5591956 from its reverse (6591955), we obtain a palindrome (999999).

The spelling of 5591956 in words is "five million, five hundred ninety-one thousand, nine hundred fifty-six".