55435723 has 4 divisors (see below), whose sum is σ = 63355120. Its totient is φ = 47516328.

The previous prime is 55435687. The next prime is 55435741. The reversal of 55435723 is 32753455.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55435723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55435753) 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, 3959688 + ... + 3959701.

It is an arithmetic number, because the mean of its divisors is an integer number (15838780).

Almost surely, 2^55435723 is an apocalyptic number.

55435723 is a deficient number, since it is larger than the sum of its proper divisors (7919397).

55435723 is an equidigital number, since it uses as much as digits as its factorization.

55435723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919396.

The product of its digits is 63000, while the sum is 34.

The square root of 55435723 is about 7445.5169733203. The cubic root of 55435723 is about 381.2968686266.

The spelling of 55435723 in words is "fifty-five million, four hundred thirty-five thousand, seven hundred twenty-three".