550520453 has 4 divisors (see below), whose sum is σ = 629166240. Its totient is φ = 471874668.

The previous prime is 550520449. The next prime is 550520461. The reversal of 550520453 is 354025055.

It is a happy number.

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 550520453 - 2² = 550520449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550520473) 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, 39322883 + ... + 39322896.

It is an arithmetic number, because the mean of its divisors is an integer number (157291560).

Almost surely, 2^550520453 is an apocalyptic number.

It is an amenable number.

550520453 is a deficient number, since it is larger than the sum of its proper divisors (78645787).

550520453 is an equidigital number, since it uses as much as digits as its factorization.

550520453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78645786.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 550520453 is about 23463.1722706031. The cubic root of 550520453 is about 819.5796244070.

The spelling of 550520453 in words is "five hundred fifty million, five hundred twenty thousand, four hundred fifty-three".