55250004 has 24 divisors (see below), whose sum is σ = 131660928. Its totient is φ = 18024640.

The previous prime is 55250003. The next prime is 55250011. The reversal of 55250004 is 40005255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48417 + ... + 49544.

It is an arithmetic number, because the mean of its divisors is an integer number (5485872).

Almost surely, 2^55250004 is an apocalyptic number.

It is an amenable number.

55250004 is an abundant number, since it is smaller than the sum of its proper divisors (76410924).

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

55250004 is a wasteful number, since it uses less digits than its factorization.

55250004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98015 (or 98013 counting only the distinct ones).

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

The square root of 55250004 is about 7433.0346427284. The cubic root of 55250004 is about 380.8705893461.

Adding to 55250004 its reverse (40005255), we get a palindrome (95255259).

The spelling of 55250004 in words is "fifty-five million, two hundred fifty thousand, four".