455455531 has 2 divisors, whose sum is σ = 455455532. Its totient is φ = 455455530.

The previous prime is 455455523. The next prime is 455455571. The reversal of 455455531 is 135554554.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 455455531 - 2³ = 455455523 is a prime.

It is a super-2 number, since 2×455455531² = 414879481436983922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (455455501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227727765 + 227727766.

It is an arithmetic number, because the mean of its divisors is an integer number (227727766).

Almost surely, 2^455455531 is an apocalyptic number.

455455531 is a deficient number, since it is larger than the sum of its proper divisors (1).

455455531 is an equidigital number, since it uses as much as digits as its factorization.

455455531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150000, while the sum is 37.

The square root of 455455531 is about 21341.4041478062. The cubic root of 455455531 is about 769.3937607453.

It can be divided in two parts, 45545 and 5531, that added together give a square (51076 = 226²).

The spelling of 455455531 in words is "four hundred fifty-five million, four hundred fifty-five thousand, five hundred thirty-one".