1420554550 has 12 divisors (see below), whose sum is σ = 2642231556. Its totient is φ = 568221800.

The previous prime is 1420554539. The next prime is 1420554559. The reversal of 1420554550 is 554550241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420554559) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 14205496 + ... + 14205595.

It is an arithmetic number, because the mean of its divisors is an integer number (220185963).

Almost surely, 2^1420554550 is an apocalyptic number.

1420554550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420554550 is a deficient number, since it is larger than the sum of its proper divisors (1221677006).

1420554550 is a wasteful number, since it uses less digits than its factorization.

1420554550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28411103 (or 28411098 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1420554550 is about 37690.2447590885. The cubic root of 1420554550 is about 1124.1371622695.

The spelling of 1420554550 in words is "one billion, four hundred twenty million, five hundred fifty-four thousand, five hundred fifty".