55377723 has 16 divisors (see below), whose sum is σ = 78020480. Its totient is φ = 34841664.

The previous prime is 55377709. The next prime is 55377737. The reversal of 55377723 is 32777355.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55377709) and next prime (55377737).

It is not a de Polignac number, because 55377723 - 2⁶ = 55377659 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55377793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14415 + ... + 17847.

It is an arithmetic number, because the mean of its divisors is an integer number (4876280).

Almost surely, 2^55377723 is an apocalyptic number.

55377723 is a deficient number, since it is larger than the sum of its proper divisors (22642757).

55377723 is a wasteful number, since it uses less digits than its factorization.

55377723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its digits is 154350, while the sum is 39.

The square root of 55377723 is about 7441.6209927676. The cubic root of 55377723 is about 381.1638440809.

The spelling of 55377723 in words is "fifty-five million, three hundred seventy-seven thousand, seven hundred twenty-three".