55143504361450 has 24 divisors (see below), whose sum is σ = 103865233538880. Its totient is φ = 21778194126000.

The previous prime is 55143504361409. The next prime is 55143504361489. The reversal of 55143504361450 is 5416340534155.

It is a super-2 number, since 2×55143504361450² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55143504361450.

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, 6980186476 + ... + 6980194375.

It is an arithmetic number, because the mean of its divisors is an integer number (4327718064120).

Almost surely, 2^{55143504361450} is an apocalyptic number.

55143504361450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55143504361450 is a deficient number, since it is larger than the sum of its proper divisors (48721729177430).

55143504361450 is a wasteful number, since it uses less digits than its factorization.

55143504361450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13960380942 (or 13960380937 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 55143504361450 in words is "fifty-five trillion, one hundred forty-three billion, five hundred four million, three hundred sixty-one thousand, four hundred fifty".