55523571 has 4 divisors (see below), whose sum is σ = 74031432. Its totient is φ = 37015712.

The previous prime is 55523563. The next prime is 55523579. The reversal of 55523571 is 17532555.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55523563) and next prime (55523579).

It is a cyclic number.

It is not a de Polignac number, because 55523571 - 2³ = 55523563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55523579) 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, 9253926 + ... + 9253931.

It is an arithmetic number, because the mean of its divisors is an integer number (18507858).

Almost surely, 2^55523571 is an apocalyptic number.

55523571 is a deficient number, since it is larger than the sum of its proper divisors (18507861).

55523571 is a wasteful number, since it uses less digits than its factorization.

55523571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18507860.

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

The square root of 55523571 is about 7451.4140268811. The cubic root of 55523571 is about 381.4981737747.

The spelling of 55523571 in words is "fifty-five million, five hundred twenty-three thousand, five hundred seventy-one".