55764571 has 4 divisors (see below), whose sum is σ = 55779544. Its totient is φ = 55749600.

The previous prime is 55764559. The next prime is 55764613. The reversal of 55764571 is 17546755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55764571 - 2²³ = 47375963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55764671) 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, 2956 + ... + 10966.

It is an arithmetic number, because the mean of its divisors is an integer number (13944886).

Almost surely, 2^55764571 is an apocalyptic number.

55764571 is a deficient number, since it is larger than the sum of its proper divisors (14973).

55764571 is an equidigital number, since it uses as much as digits as its factorization.

55764571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14972.

The product of its digits is 147000, while the sum is 40.

The square root of 55764571 is about 7467.5679441167. The cubic root of 55764571 is about 382.0493412321.

The spelling of 55764571 in words is "fifty-five million, seven hundred sixty-four thousand, five hundred seventy-one".