55611656 has 16 divisors (see below), whose sum is σ = 104375040. Its totient is φ = 27778320.

The previous prime is 55611653. The next prime is 55611659. The reversal of 55611656 is 65611655.

It is an interprime number because it is at equal distance from previous prime (55611653) and next prime (55611659).

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55611653) 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, 7025 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (6523440).

Almost surely, 2^55611656 is an apocalyptic number.

It is an amenable number.

55611656 is a deficient number, since it is larger than the sum of its proper divisors (48763384).

55611656 is a wasteful number, since it uses less digits than its factorization.

55611656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884 (or 6880 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 55611656 is about 7457.3223076383. The cubic root of 55611656 is about 381.6998089317.

Subtracting 55611656 from its reverse (65611655), we obtain a palindrome (9999999).

The spelling of 55611656 in words is "fifty-five million, six hundred eleven thousand, six hundred fifty-six".