55135224043200 has 252 divisors, whose sum is σ = 223958405310640. Its totient is φ = 12602336901120.

The previous prime is 55135224043121. The next prime is 55135224043243. The reversal of 55135224043200 is 234042253155.

55135224043200 is a `hidden beast` number, since 5 + 5 + 1 + 352 + 240 + 43 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-3 number, since 3×55135224043200³ (a number of 42 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 273387415 + ... + 273589014.

Almost surely, 2^{55135224043200} is an apocalyptic number.

55135224043200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55135224043200 is an abundant number, since it is smaller than the sum of its proper divisors (168823181267440).

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

55135224043200 is a wasteful number, since it uses less digits than its factorization.

55135224043200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546976464 (or 546976446 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 55135224043200 its reverse (234042253155), we get a palindrome (55369266296355).

The spelling of 55135224043200 in words is "fifty-five trillion, one hundred thirty-five billion, two hundred twenty-four million, forty-three thousand, two hundred".