55545001402400 has 72 divisors (see below), whose sum is σ = 135628261399764. Its totient is φ = 22213244518400.

The previous prime is 55545001402393. The next prime is 55545001402453. The reversal of 55545001402400 is 420410054555.

It can be written as a sum of positive squares in 6 ways, for example, as 31147605648016 + 24397395754384 = 5581004^2 + 4939372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3690581 + ... + 11167380.

Almost surely, 2^{55545001402400} is an apocalyptic number.

55545001402400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55545001402400 is an abundant number, since it is smaller than the sum of its proper divisors (80083259997364).

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

55545001402400 is a wasteful number, since it uses less digits than its factorization.

55545001402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14862654 (or 14862641 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 55545001402400 its reverse (420410054555), we get a palindrome (55965411456955).

The spelling of 55545001402400 in words is "fifty-five trillion, five hundred forty-five billion, one million, four hundred two thousand, four hundred".