55422455 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-55422455 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 255422455 is an apocalyptic number.
55422455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
55422455 is a wasteful number, since it uses less digits than its factorization.
55422455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1007697.
The square root of 55422455 is about 7444.6259140403. The cubic root of 55422455 is about 381.2664463030.
The spelling of 55422455 in words is "fifty-five million, four hundred twenty-two thousand, four hundred fifty-five".