55696440 has 32 divisors (see below), whose sum is σ = 167089680. Its totient is φ = 14852352.

The previous prime is 55696439. The next prime is 55696441. The reversal of 55696440 is 4469655.

55696440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55696439) and next prime (55696441).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55696441) 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 7 ways as a sum of consecutive naturals, for example, 231949 + ... + 232188.

Almost surely, 2^55696440 is an apocalyptic number.

It is an amenable number.

55696440 is an abundant number, since it is smaller than the sum of its proper divisors (111393240).

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

55696440 is a wasteful number, since it uses less digits than its factorization.

55696440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464151 (or 464147 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 55696440 is about 7463.0047567987. The cubic root of 55696440 is about 381.8936867788.

The spelling of 55696440 in words is "fifty-five million, six hundred ninety-six thousand, four hundred forty".