55416004 has 12 divisors (see below), whose sum is σ = 110832064. Its totient is φ = 23749704.

The previous prime is 55416001. The next prime is 55416017. The reversal of 55416004 is 40061455.

55416004 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55416004.

It is not an unprimeable number, because it can be changed into a prime (55416001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989544 + ... + 989599.

Almost surely, 2^55416004 is an apocalyptic number.

It is an amenable number.

55416004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55416004 is a wasteful number, since it uses less digits than its factorization.

55416004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979154 (or 1979152 counting only the distinct ones).

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

The square root of 55416004 is about 7444.1926358740. The cubic root of 55416004 is about 381.2516529893.

Adding to 55416004 its reverse (40061455), we get a palindrome (95477459).

The spelling of 55416004 in words is "fifty-five million, four hundred sixteen thousand, four".