55025444 has 24 divisors (see below), whose sum is σ = 103840800. Its totient is φ = 25427520.

The previous prime is 55025437. The next prime is 55025479. The reversal of 55025444 is 44452055.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5714 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (4326700).

Almost surely, 2^55025444 is an apocalyptic number.

It is an amenable number.

55025444 is a deficient number, since it is larger than the sum of its proper divisors (48815356).

55025444 is a wasteful number, since it uses less digits than its factorization.

55025444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723 (or 17721 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 55025444 is about 7417.9137228738. The cubic root of 55025444 is about 380.3538808670.

Adding to 55025444 its reverse (44452055), we get a palindrome (99477499).

The spelling of 55025444 in words is "fifty-five million, twenty-five thousand, four hundred forty-four".