405316553 has 4 divisors (see below), whose sum is σ = 405373968. Its totient is φ = 405259140.

The previous prime is 405316547. The next prime is 405316577. The reversal of 405316553 is 355613504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 405316553 - 2¹⁰ = 405315529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (405316523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16343 + ... + 32828.

It is an arithmetic number, because the mean of its divisors is an integer number (101343492).

Almost surely, 2^405316553 is an apocalyptic number.

It is an amenable number.

405316553 is a deficient number, since it is larger than the sum of its proper divisors (57415).

405316553 is an equidigital number, since it uses as much as digits as its factorization.

405316553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57414.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 405316553 is about 20132.4750838043. The cubic root of 405316553 is about 740.0563342796.

The spelling of 405316553 in words is "four hundred five million, three hundred sixteen thousand, five hundred fifty-three".