55535449 has 4 divisors (see below), whose sum is σ = 55972864. Its totient is φ = 55098036.

The previous prime is 55535371. The next prime is 55535503. The reversal of 55535449 is 94453555.

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 55535449 - 2⁷ = 55535321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55533449) 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, 218517 + ... + 218770.

It is an arithmetic number, because the mean of its divisors is an integer number (13993216).

Almost surely, 2^55535449 is an apocalyptic number.

It is an amenable number.

55535449 is a deficient number, since it is larger than the sum of its proper divisors (437415).

55535449 is a wasteful number, since it uses less digits than its factorization.

55535449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437414.

The product of its digits is 270000, while the sum is 40.

The square root of 55535449 is about 7452.2110141890. The cubic root of 55535449 is about 381.5253761090.

The spelling of 55535449 in words is "fifty-five million, five hundred thirty-five thousand, four hundred forty-nine".