55696140 has 48 divisors (see below), whose sum is σ = 173278560. Its totient is φ = 14852160.

The previous prime is 55696127. The next prime is 55696141. The reversal of 55696140 is 4169655.

55696140 is a `hidden beast` number, since 556 + 9 + 61 + 40 = 666.

55696140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55696095 and 55696104.

It is not an unprimeable number, because it can be changed into a prime (55696141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51031 + ... + 52110.

It is an arithmetic number, because the mean of its divisors is an integer number (3609970).

Almost surely, 2^55696140 is an apocalyptic number.

It is an amenable number.

55696140 is an abundant number, since it is smaller than the sum of its proper divisors (117582420).

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

55696140 is a wasteful number, since it uses less digits than its factorization.

55696140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103159 (or 103151 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55696140 is about 7462.9846576286. The cubic root of 55696140 is about 381.8930011078.

The spelling of 55696140 in words is "fifty-five million, six hundred ninety-six thousand, one hundred forty".