55551723 has 8 divisors (see below), whose sum is σ = 74184000. Its totient is φ = 36976968.

The previous prime is 55551709. The next prime is 55551731. The reversal of 55551723 is 32715555.

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

It is not a de Polignac number, because 55551723 - 2⁴ = 55551707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55551703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12073 + ... + 16026.

It is an arithmetic number, because the mean of its divisors is an integer number (9273000).

Almost surely, 2^55551723 is an apocalyptic number.

55551723 is a deficient number, since it is larger than the sum of its proper divisors (18632277).

55551723 is a wasteful number, since it uses less digits than its factorization.

55551723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28761.

The product of its digits is 26250, while the sum is 33.

The square root of 55551723 is about 7453.3028249227. The cubic root of 55551723 is about 381.5626396208.

The spelling of 55551723 in words is "fifty-five million, five hundred fifty-one thousand, seven hundred twenty-three".