55052004 has 48 divisors (see below), whose sum is σ = 150781568. Its totient is φ = 15303168.

The previous prime is 55051999. The next prime is 55052021. The reversal of 55052004 is 40025055.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5749 + ... + 11964.

Almost surely, 2^55052004 is an apocalyptic number.

It is an amenable number.

55052004 is an abundant number, since it is smaller than the sum of its proper divisors (95729564).

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

55052004 is a wasteful number, since it uses less digits than its factorization.

55052004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17764 (or 17762 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 55052004 is about 7419.7037676716. The cubic root of 55052004 is about 380.4150681613.

Adding to 55052004 its reverse (40025055), we get a palindrome (95077059).

The spelling of 55052004 in words is "fifty-five million, fifty-two thousand, four".