552506491 has 4 divisors (see below), whose sum is σ = 581585800. Its totient is φ = 523427184.

The previous prime is 552506431. The next prime is 552506509. The reversal of 552506491 is 194605255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 552506491 - 2⁹ = 552505979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 552506491.

It is not an unprimeable number, because it can be changed into a prime (552506431) 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, 14539626 + ... + 14539663.

It is an arithmetic number, because the mean of its divisors is an integer number (145396450).

Almost surely, 2^552506491 is an apocalyptic number.

552506491 is a deficient number, since it is larger than the sum of its proper divisors (29079309).

552506491 is a wasteful number, since it uses less digits than its factorization.

552506491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29079308.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 552506491 is about 23505.4566218144. The cubic root of 552506491 is about 820.5640037151.

The spelling of 552506491 in words is "five hundred fifty-two million, five hundred six thousand, four hundred ninety-one".