55723499 has 4 divisors (see below), whose sum is σ = 60009936. Its totient is φ = 51437064.

The previous prime is 55723489. The next prime is 55723513. The reversal of 55723499 is 99432755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55723499 - 2⁴ = 55723483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55723429) 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, 2143199 + ... + 2143224.

It is an arithmetic number, because the mean of its divisors is an integer number (15002484).

Almost surely, 2^55723499 is an apocalyptic number.

55723499 is a deficient number, since it is larger than the sum of its proper divisors (4286437).

55723499 is a wasteful number, since it uses less digits than its factorization.

55723499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286436.

The product of its digits is 340200, while the sum is 44.

The square root of 55723499 is about 7464.8174123685. The cubic root of 55723499 is about 381.9555218994.

The spelling of 55723499 in words is "fifty-five million, seven hundred twenty-three thousand, four hundred ninety-nine".