55723965 has 16 divisors (see below), whose sum is σ = 97263936. Its totient is φ = 27017600.

The previous prime is 55723949. The next prime is 55723973. The reversal of 55723965 is 56932755.

It is not a de Polignac number, because 55723965 - 2⁴ = 55723949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168696 + ... + 169025.

It is an arithmetic number, because the mean of its divisors is an integer number (6078996).

Almost surely, 2^55723965 is an apocalyptic number.

55723965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55723965 is a deficient number, since it is larger than the sum of its proper divisors (41539971).

55723965 is a wasteful number, since it uses less digits than its factorization.

55723965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337740.

The product of its digits is 283500, while the sum is 42.

The square root of 55723965 is about 7464.8486253909. The cubic root of 55723965 is about 381.9565866254.

The spelling of 55723965 in words is "fifty-five million, seven hundred twenty-three thousand, nine hundred sixty-five".