55425004 has 6 divisors (see below), whose sum is σ = 96993764. Its totient is φ = 27712500.

The previous prime is 55424987. The next prime is 55425011. The reversal of 55425004 is 40052455.

It is a self number, because there is not a number n which added to its sum of digits gives 55425004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6928122 + ... + 6928129.

Almost surely, 2^55425004 is an apocalyptic number.

It is an amenable number.

55425004 is a deficient number, since it is larger than the sum of its proper divisors (41568760).

55425004 is a wasteful number, since it uses less digits than its factorization.

55425004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13856255 (or 13856253 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55425004 is about 7444.7971093912. The cubic root of 55425004 is about 381.2722913061.

Adding to 55425004 its reverse (40052455), we get a palindrome (95477459).

It can be divided in two parts, 554 and 25004, that multiplied together give a triangular number (13852216 = T₅₂₆₃).

The spelling of 55425004 in words is "fifty-five million, four hundred twenty-five thousand, four".