5581463 has 2 divisors, whose sum is σ = 5581464. Its totient is φ = 5581462.

The previous prime is 5581451. The next prime is 5581469. The reversal of 5581463 is 3641855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5581463 - 2⁴ = 5581447 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5581469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790731 + 2790732.

It is an arithmetic number, because the mean of its divisors is an integer number (2790732).

Almost surely, 2^5581463 is an apocalyptic number.

5581463 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581463 is an equidigital number, since it uses as much as digits as its factorization.

5581463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 5581463 is about 2362.5120105515. The cubic root of 5581463 is about 177.3846423631.

It can be divided in two parts, 55 and 81463, that added together give a palindrome (81518).

The spelling of 5581463 in words is "five million, five hundred eighty-one thousand, four hundred sixty-three".