55065696 has 48 divisors (see below), whose sum is σ = 165199104. Its totient is φ = 15732864.

The previous prime is 55065679. The next prime is 55065697. The reversal of 55065696 is 69656055.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065697) 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, 40300 + ... + 41643.

It is an arithmetic number, because the mean of its divisors is an integer number (3441648).

Almost surely, 2^55065696 is an apocalyptic number.

55065696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55065696 is an abundant number, since it is smaller than the sum of its proper divisors (110133408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55065696 is a wasteful number, since it uses less digits than its factorization.

55065696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81963 (or 81955 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 42.

The square root of 55065696 is about 7420.6263886548. The cubic root of 55065696 is about 380.4466032614.

The spelling of 55065696 in words is "fifty-five million, sixty-five thousand, six hundred ninety-six".