55510004 has 24 divisors (see below), whose sum is σ = 107031456. Its totient is φ = 24980000.

The previous prime is 55509997. The next prime is 55510009. The reversal of 55510004 is 40001555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510009) 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, 1802 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (4459644).

Almost surely, 2^55510004 is an apocalyptic number.

It is an amenable number.

55510004 is a deficient number, since it is larger than the sum of its proper divisors (51521452).

55510004 is a wasteful number, since it uses less digits than its factorization.

55510004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607 (or 12605 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55510004 is about 7450.5036071396. The cubic root of 55510004 is about 381.4670986400.

Adding to 55510004 its reverse (40001555), we get a palindrome (95511559).

The spelling of 55510004 in words is "fifty-five million, five hundred ten thousand, four".