55451403999 has 12 divisors (see below), whose sum is σ = 80327302536. Its totient is φ = 36861065712.

The previous prime is 55451403989. The next prime is 55451404027. The reversal of 55451403999 is 99930415455.

55451403999 is a `hidden beast` number, since 5 + 5 + 4 + 514 + 0 + 39 + 99 = 666.

It is not a de Polignac number, because 55451403999 - 2⁹ = 55451403487 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451403979) 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, 8874784 + ... + 8881029.

It is an arithmetic number, because the mean of its divisors is an integer number (6693941878).

Almost surely, 2^55451403999 is an apocalyptic number.

55451403999 is a deficient number, since it is larger than the sum of its proper divisors (24875898537).

55451403999 is a wasteful number, since it uses less digits than its factorization.

55451403999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17756166 (or 17756163 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 54.

The spelling of 55451403999 in words is "fifty-five billion, four hundred fifty-one million, four hundred three thousand, nine hundred ninety-nine".