55070144 has 28 divisors (see below), whose sum is σ = 109517688. Its totient is φ = 27475200.

The previous prime is 55070107. The next prime is 55070161. The reversal of 55070144 is 44107055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51374 + ... + 52434.

It is an arithmetic number, because the mean of its divisors is an integer number (3911346).

Almost surely, 2^55070144 is an apocalyptic number.

It is an amenable number.

55070144 is a deficient number, since it is larger than the sum of its proper divisors (54447544).

55070144 is a wasteful number, since it uses less digits than its factorization.

55070144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 55070144 is about 7420.9260877602. The cubic root of 55070144 is about 380.4568466679.

Adding to 55070144 its reverse (44107055), we get a palindrome (99177199).

The spelling of 55070144 in words is "fifty-five million, seventy thousand, one hundred forty-four".