55206949 has 8 divisors (see below), whose sum is σ = 64163520. Its totient is φ = 46517856.

The previous prime is 55206929. The next prime is 55206979. The reversal of 55206949 is 94960255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55206949 - 2⁵ = 55206917 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 (55206919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66424 + ... + 67249.

It is an arithmetic number, because the mean of its divisors is an integer number (8020440).

Almost surely, 2^55206949 is an apocalyptic number.

55206949 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55206949 is a deficient number, since it is larger than the sum of its proper divisors (8956571).

55206949 is a wasteful number, since it uses less digits than its factorization.

55206949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133739.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 55206949 is about 7430.1378856654. The cubic root of 55206949 is about 380.7716292043.

The spelling of 55206949 in words is "fifty-five million, two hundred six thousand, nine hundred forty-nine".