55002442 has 16 divisors (see below), whose sum is σ = 90139392. Its totient is φ = 24963520.

The previous prime is 55002433. The next prime is 55002449. The reversal of 55002442 is 24420055.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (55002449) 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, 17538 + ... + 20434.

It is an arithmetic number, because the mean of its divisors is an integer number (5633712).

Almost surely, 2^55002442 is an apocalyptic number.

55002442 is a deficient number, since it is larger than the sum of its proper divisors (35136950).

55002442 is a wasteful number, since it uses less digits than its factorization.

55002442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 55002442 is about 7416.3631248746. The cubic root of 55002442 is about 380.3008743625.

Adding to 55002442 its reverse (24420055), we get a palindrome (79422497).

The spelling of 55002442 in words is "fifty-five million, two thousand, four hundred forty-two".