10420542550 has 48 divisors (see below), whose sum is σ = 21266643312. Its totient is φ = 3767350400.

The previous prime is 10420542529. The next prime is 10420542553. The reversal of 10420542550 is 5524502401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420542553) 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, 40392 + ... + 149908.

It is an arithmetic number, because the mean of its divisors is an integer number (443055069).

Almost surely, 2^10420542550 is an apocalyptic number.

10420542550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10420542550 is an abundant number, since it is smaller than the sum of its proper divisors (10846100762).

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

10420542550 is a wasteful number, since it uses less digits than its factorization.

10420542550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109713 (or 109708 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 10420542550 in words is "ten billion, four hundred twenty million, five hundred forty-two thousand, five hundred fifty".