55153400 has 24 divisors (see below), whose sum is σ = 128232120. Its totient is φ = 22061280.

The previous prime is 55153387. The next prime is 55153403. The reversal of 55153400 is 435155.

55153400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137684 + ... + 138083.

It is an arithmetic number, because the mean of its divisors is an integer number (5343005).

Almost surely, 2^55153400 is an apocalyptic number.

55153400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55153400 is an abundant number, since it is smaller than the sum of its proper divisors (73078720).

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

55153400 is a wasteful number, since it uses less digits than its factorization.

55153400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275783 (or 275774 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55153400 is about 7426.5335116729. The cubic root of 55153400 is about 380.6484772193.

Adding to 55153400 its reverse (435155), we get a palindrome (55588555).

The spelling of 55153400 in words is "fifty-five million, one hundred fifty-three thousand, four hundred".