55665526 has 16 divisors (see below), whose sum is σ = 96355584. Its totient is φ = 23624424.

The previous prime is 55665523. The next prime is 55665541. The reversal of 55665526 is 62556655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55665523) 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, 17860 + ... + 20743.

It is an arithmetic number, because the mean of its divisors is an integer number (6022224).

Almost surely, 2^55665526 is an apocalyptic number.

55665526 is a deficient number, since it is larger than the sum of its proper divisors (40690058).

55665526 is a wasteful number, since it uses less digits than its factorization.

55665526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38715.

The product of its digits is 270000, while the sum is 40.

The square root of 55665526 is about 7460.9333196323. The cubic root of 55665526 is about 381.8230177117.

The spelling of 55665526 in words is "fifty-five million, six hundred sixty-five thousand, five hundred twenty-six".