55498666 has 16 divisors (see below), whose sum is σ = 86119488. Its totient is φ = 26805600.

The previous prime is 55498661. The next prime is 55498687. The reversal of 55498666 is 66689455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55498661) 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, 5161 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (5382468).

Almost surely, 2^55498666 is an apocalyptic number.

55498666 is a deficient number, since it is larger than the sum of its proper divisors (30620822).

55498666 is a wasteful number, since it uses less digits than its factorization.

55498666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717.

The product of its digits is 1555200, while the sum is 49.

The square root of 55498666 is about 7449.7426801199. The cubic root of 55498666 is about 381.4411251328.

The spelling of 55498666 in words is "fifty-five million, four hundred ninety-eight thousand, six hundred sixty-six".