55267399 has 8 divisors (see below), whose sum is σ = 60914448. Its totient is φ = 49724160.

The previous prime is 55267363. The next prime is 55267411. The reversal of 55267399 is 99376255.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55267399 - 2⁷ = 55267271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55267339) 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, 24832 + ... + 26965.

It is an arithmetic number, because the mean of its divisors is an integer number (7614306).

Almost surely, 2^55267399 is an apocalyptic number.

55267399 is a deficient number, since it is larger than the sum of its proper divisors (5647049).

55267399 is a wasteful number, since it uses less digits than its factorization.

55267399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51905.

The product of its digits is 510300, while the sum is 46.

The square root of 55267399 is about 7434.2046649255. The cubic root of 55267399 is about 380.9105564547.

The spelling of 55267399 in words is "fifty-five million, two hundred sixty-seven thousand, three hundred ninety-nine".