55299013 has 8 divisors (see below), whose sum is σ = 68944320. Its totient is φ = 43090080.

The previous prime is 55298983. The next prime is 55299031. The reversal of 55299013 is 31099255.

It is a happy number.

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

It is not a de Polignac number, because 55299013 - 2²¹ = 53201861 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 55299013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55290013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359008 + ... + 359161.

It is an arithmetic number, because the mean of its divisors is an integer number (8618040).

Almost surely, 2^55299013 is an apocalyptic number.

It is an amenable number.

55299013 is a deficient number, since it is larger than the sum of its proper divisors (13645307).

55299013 is a wasteful number, since it uses less digits than its factorization.

55299013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718187.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 55299013 is about 7436.3306139520. The cubic root of 55299013 is about 380.9831719638.

The spelling of 55299013 in words is "fifty-five million, two hundred ninety-nine thousand, thirteen".