10421523550 has 12 divisors (see below), whose sum is σ = 19384033896. Its totient is φ = 4168609400.

The previous prime is 10421523517. The next prime is 10421523601. The reversal of 10421523550 is 5532512401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104215186 + ... + 104215285.

It is an arithmetic number, because the mean of its divisors is an integer number (1615336158).

Almost surely, 2^10421523550 is an apocalyptic number.

10421523550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10421523550 is a deficient number, since it is larger than the sum of its proper divisors (8962510346).

10421523550 is a wasteful number, since it uses less digits than its factorization.

10421523550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208430483 (or 208430478 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

It can be divided in two parts, 104215 and 23550, that added together give a triangular number (127765 = T₅₀₅).

The spelling of 10421523550 in words is "ten billion, four hundred twenty-one million, five hundred twenty-three thousand, five hundred fifty".