55673399 has 4 divisors (see below), whose sum is σ = 55874664. Its totient is φ = 55472136.

The previous prime is 55673393. The next prime is 55673407. The reversal of 55673399 is 99337655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99337655 = 5 ⋅19867531.

It is a cyclic number.

It is not a de Polignac number, because 55673399 - 2⁴ = 55673383 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 (55673393) 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, 100217 + ... + 100770.

It is an arithmetic number, because the mean of its divisors is an integer number (13968666).

Almost surely, 2^55673399 is an apocalyptic number.

55673399 is a deficient number, since it is larger than the sum of its proper divisors (201265).

55673399 is a wasteful number, since it uses less digits than its factorization.

55673399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201264.

The product of its digits is 765450, while the sum is 47.

The square root of 55673399 is about 7461.4609159333. The cubic root of 55673399 is about 381.8410177866.

The spelling of 55673399 in words is "fifty-five million, six hundred seventy-three thousand, three hundred ninety-nine".