553949 has 4 divisors (see below), whose sum is σ = 604320. Its totient is φ = 503580.

The previous prime is 553933. The next prime is 553961. The reversal of 553949 is 949355.

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 not a de Polignac number, because 553949 - 2⁴ = 553933 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 (553919) 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, 25169 + ... + 25190.

It is an arithmetic number, because the mean of its divisors is an integer number (151080).

2⁵⁵³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

553949 is a deficient number, since it is larger than the sum of its proper divisors (50371).

553949 is a wasteful number, since it uses less digits than its factorization.

553949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50370.

The product of its digits is 24300, while the sum is 35.

The square root of 553949 is about 744.2775020112. The cubic root of 553949 is about 82.1277505031.

It can be divided in two parts, 55 and 3949, that added together give a palindrome (4004).

The spelling of 553949 in words is "five hundred fifty-three thousand, nine hundred forty-nine".