55723511 has 8 divisors (see below), whose sum is σ = 57009744. Its totient is φ = 54446080.

The previous prime is 55723489. The next prime is 55723513. The reversal of 55723511 is 11532755.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55723511 - 2¹⁰ = 55722487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55723513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11576 + ... + 15666.

It is an arithmetic number, because the mean of its divisors is an integer number (7126218).

Almost surely, 2^55723511 is an apocalyptic number.

55723511 is a deficient number, since it is larger than the sum of its proper divisors (1286233).

55723511 is a wasteful number, since it uses less digits than its factorization.

55723511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its digits is 5250, while the sum is 29.

The square root of 55723511 is about 7464.8182161390. The cubic root of 55723511 is about 381.9555493173.

The spelling of 55723511 in words is "fifty-five million, seven hundred twenty-three thousand, five hundred eleven".