55596663 has 18 divisors (see below), whose sum is σ = 81154944. Its totient is φ = 36676584.

The previous prime is 55596661. The next prime is 55596677. The reversal of 55596663 is 36669555.

It is not a de Polignac number, because 55596663 - 2¹ = 55596661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55596661) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 144970 + ... + 145352.

It is an arithmetic number, because the mean of its divisors is an integer number (4508608).

Almost surely, 2^55596663 is an apocalyptic number.

55596663 is a deficient number, since it is larger than the sum of its proper divisors (25558281).

55596663 is a wasteful number, since it uses less digits than its factorization.

55596663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 513 counting only the distinct ones).

The product of its digits is 729000, while the sum is 45.

The square root of 55596663 is about 7456.3169862875. The cubic root of 55596663 is about 381.6655035359.

The spelling of 55596663 in words is "fifty-five million, five hundred ninety-six thousand, six hundred sixty-three".