553969487 has 4 divisors (see below), whose sum is σ = 563051016. Its totient is φ = 544887960.

The previous prime is 553969483. The next prime is 553969489. The reversal of 553969487 is 784969355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784969355 = 5 ⋅156993871.

It is a cyclic number.

It is not a de Polignac number, because 553969487 - 2² = 553969483 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 (553969483) 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, 4540673 + ... + 4540794.

It is an arithmetic number, because the mean of its divisors is an integer number (140762754).

Almost surely, 2^553969487 is an apocalyptic number.

553969487 is a deficient number, since it is larger than the sum of its proper divisors (9081529).

553969487 is an equidigital number, since it uses as much as digits as its factorization.

553969487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081528.

The product of its digits is 8164800, while the sum is 56.

The square root of 553969487 is about 23536.5563963805. The cubic root of 553969487 is about 821.2876294916.

The spelling of 553969487 in words is "five hundred fifty-three million, nine hundred sixty-nine thousand, four hundred eighty-seven".