55566662 has 4 divisors (see below), whose sum is σ = 83349996. Its totient is φ = 27783330.

The previous prime is 55566661. The next prime is 55566671. The reversal of 55566662 is 26666555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26666555 = 5 ⋅5333311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55566661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13891664 + ... + 13891667.

It is an arithmetic number, because the mean of its divisors is an integer number (20837499).

Almost surely, 2^55566662 is an apocalyptic number.

55566662 is a deficient number, since it is larger than the sum of its proper divisors (27783334).

55566662 is a wasteful number, since it uses less digits than its factorization.

55566662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27783333.

The product of its digits is 324000, while the sum is 41.

The square root of 55566662 is about 7454.3049307095. The cubic root of 55566662 is about 381.5968399005.

The spelling of 55566662 in words is "fifty-five million, five hundred sixty-six thousand, six hundred sixty-two".