55398705600 has 168 divisors, whose sum is σ = 207718891648. Its totient is φ = 12662553600.

The previous prime is 55398705599. The next prime is 55398705601. The reversal of 55398705600 is 650789355.

It is an interprime number because it is at equal distance from previous prime (55398705599) and next prime (55398705601).

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 55398705600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55398705601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790786 + ... + 857985.

Almost surely, 2^55398705600 is an apocalyptic number.

55398705600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55398705600 is an abundant number, since it is smaller than the sum of its proper divisors (152320186048).

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

55398705600 is a wasteful number, since it uses less digits than its factorization.

55398705600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648803 (or 1648788 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 55398705600 in words is "fifty-five billion, three hundred ninety-eight million, seven hundred five thousand, six hundred".