554401531 has 2 divisors, whose sum is σ = 554401532. Its totient is φ = 554401530.

The previous prime is 554401459. The next prime is 554401567. The reversal of 554401531 is 135104455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554401531 - 2¹³ = 554393339 is a prime.

It is a super-2 number, since 2×554401531² = 614722115150287922, 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 554401531.

It is not a weakly prime, because it can be changed into another prime (554402531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277200765 + 277200766.

It is an arithmetic number, because the mean of its divisors is an integer number (277200766).

Almost surely, 2^554401531 is an apocalyptic number.

554401531 is a deficient number, since it is larger than the sum of its proper divisors (1).

554401531 is an equidigital number, since it uses as much as digits as its factorization.

554401531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 554401531 is about 23545.7327556396. The cubic root of 554401531 is about 821.5010829974.

Adding to 554401531 its reverse (135104455), we get a palindrome (689505986).

The spelling of 554401531 in words is "five hundred fifty-four million, four hundred one thousand, five hundred thirty-one".