10405320550 has 48 divisors (see below), whose sum is σ = 20387266560. Its totient is φ = 3940215840.

The previous prime is 10405320529. The next prime is 10405320571. The reversal of 10405320550 is 5502350401.

10405320550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10405320529) and next prime (10405320571).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1690779 + ... + 1696921.

It is an arithmetic number, because the mean of its divisors is an integer number (424734720).

Almost surely, 2^10405320550 is an apocalyptic number.

10405320550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10405320550 is a deficient number, since it is larger than the sum of its proper divisors (9981946010).

10405320550 is a wasteful number, since it uses less digits than its factorization.

10405320550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957 (or 7952 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 10405320550 its reverse (5502350401), we get a palindrome (15907670951).

The spelling of 10405320550 in words is "ten billion, four hundred five million, three hundred twenty thousand, five hundred fifty".