554601331 has 2 divisors, whose sum is σ = 554601332. Its totient is φ = 554601330.

The previous prime is 554601287. The next prime is 554601343. The reversal of 554601331 is 133106455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554601331 is a prime.

It is a super-2 number, since 2×554601331² = 615165272693943122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 554601331.

It is not a weakly prime, because it can be changed into another prime (554601371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277300665 + 277300666.

It is an arithmetic number, because the mean of its divisors is an integer number (277300666).

Almost surely, 2^554601331 is an apocalyptic number.

554601331 is a deficient number, since it is larger than the sum of its proper divisors (1).

554601331 is an equidigital number, since it uses as much as digits as its factorization.

554601331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 554601331 is about 23549.9751804540. The cubic root of 554601331 is about 821.5997576905.

Adding to 554601331 its reverse (133106455), we get a palindrome (687707786).

The spelling of 554601331 in words is "five hundred fifty-four million, six hundred one thousand, three hundred thirty-one".