553204987 has 4 divisors (see below), whose sum is σ = 553260400. Its totient is φ = 553149576.

The previous prime is 553204979. The next prime is 553205011. The reversal of 553204987 is 789402355.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 553204987 - 2³ = 553204979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553204387) 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, 8112 + ... + 34237.

It is an arithmetic number, because the mean of its divisors is an integer number (138315100).

Almost surely, 2^553204987 is an apocalyptic number.

553204987 is a deficient number, since it is larger than the sum of its proper divisors (55413).

553204987 is a wasteful number, since it uses less digits than its factorization.

553204987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55412.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 553204987 is about 23520.3100957449. The cubic root of 553204987 is about 820.9096523288.

The spelling of 553204987 in words is "five hundred fifty-three million, two hundred four thousand, nine hundred eighty-seven".