5405440631550 has 48 divisors (see below), whose sum is σ = 13410089495472. Its totient is φ = 1440956563200.

The previous prime is 5405440631537. The next prime is 5405440631579. The reversal of 5405440631550 is 551360445045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5739391 + ... + 6614490.

It is an arithmetic number, because the mean of its divisors is an integer number (279376864489).

Almost surely, 2^{5405440631550} is an apocalyptic number.

5405440631550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5405440631550 is an abundant number, since it is smaller than the sum of its proper divisors (8004648863922).

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

5405440631550 is a wasteful number, since it uses less digits than its factorization.

5405440631550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12356813 (or 12356808 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 5405440631550 in words is "five trillion, four hundred five billion, four hundred forty million, six hundred thirty-one thousand, five hundred fifty".