55429311 has 8 divisors (see below), whose sum is σ = 84463744. Its totient is φ = 31673880.

The previous prime is 55429307. The next prime is 55429313. The reversal of 55429311 is 11392455.

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

It is not a de Polignac number, because 55429311 - 2² = 55429307 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 (55429313) 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, 1319725 + ... + 1319766.

It is an arithmetic number, because the mean of its divisors is an integer number (10557968).

Almost surely, 2^55429311 is an apocalyptic number.

55429311 is a deficient number, since it is larger than the sum of its proper divisors (29034433).

55429311 is a wasteful number, since it uses less digits than its factorization.

55429311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639501.

The product of its digits is 5400, while the sum is 30.

The square root of 55429311 is about 7445.0863661881. The cubic root of 55429311 is about 381.2821670969.

The spelling of 55429311 in words is "fifty-five million, four hundred twenty-nine thousand, three hundred eleven".