55964138 has 8 divisors (see below), whose sum is σ = 84108288. Its totient is φ = 27928044.

The previous prime is 55964137. The next prime is 55964143. The reversal of 55964138 is 83146955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55964095 and 55964104.

It is not an unprimeable number, because it can be changed into a prime (55964137) 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, 25706 + ... + 27797.

It is an arithmetic number, because the mean of its divisors is an integer number (10513536).

Almost surely, 2^55964138 is an apocalyptic number.

55964138 is a deficient number, since it is larger than the sum of its proper divisors (28144150).

55964138 is a wasteful number, since it uses less digits than its factorization.

55964138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54028.

The product of its digits is 129600, while the sum is 41.

The square root of 55964138 is about 7480.9182591444. The cubic root of 55964138 is about 382.5045506173.

The spelling of 55964138 in words is "fifty-five million, nine hundred sixty-four thousand, one hundred thirty-eight".