55016404 has 24 divisors (see below), whose sum is σ = 97832448. Its totient is φ = 27068160.

The previous prime is 55016399. The next prime is 55016407. The reversal of 55016404 is 40461055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55016407) 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, 81412 + ... + 82084.

It is an arithmetic number, because the mean of its divisors is an integer number (4076352).

Almost surely, 2^55016404 is an apocalyptic number.

It is an amenable number.

55016404 is a deficient number, since it is larger than the sum of its proper divisors (42816044).

55016404 is a wasteful number, since it uses less digits than its factorization.

55016404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 55016404 is about 7417.3043620981. The cubic root of 55016404 is about 380.3330505799. Note that the first 3 decimals are identical.

Adding to 55016404 its reverse (40461055), we get a palindrome (95477459).

The spelling of 55016404 in words is "fifty-five million, sixteen thousand, four hundred four".