55454220504 has 48 divisors (see below), whose sum is σ = 153384023520. Its totient is φ = 18091446720.

The previous prime is 55454220499. The next prime is 55454220509. The reversal of 55454220504 is 40502245455.

55454220504 is a `hidden beast` number, since 5 + 545 + 42 + 20 + 50 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (55454220499) and next prime (55454220509).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55454220509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8190207 + ... + 8196974.

It is an arithmetic number, because the mean of its divisors is an integer number (3195500490).

Almost surely, 2^55454220504 is an apocalyptic number.

It is an amenable number.

55454220504 is an abundant number, since it is smaller than the sum of its proper divisors (97929803016).

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

55454220504 is a wasteful number, since it uses less digits than its factorization.

55454220504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16387240 (or 16387233 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

Adding to 55454220504 its reverse (40502245455), we get a palindrome (95956465959).

The spelling of 55454220504 in words is "fifty-five billion, four hundred fifty-four million, two hundred twenty thousand, five hundred four".