1451205550 has 24 divisors (see below), whose sum is σ = 2710848816. Its totient is φ = 577986240.

The previous prime is 1451205533. The next prime is 1451205557. The reversal of 1451205550 is 555021541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451205557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50634 + ... + 73933.

It is an arithmetic number, because the mean of its divisors is an integer number (112952034).

Almost surely, 2^1451205550 is an apocalyptic number.

1451205550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1451205550 is a deficient number, since it is larger than the sum of its proper divisors (1259643266).

1451205550 is a wasteful number, since it uses less digits than its factorization.

1451205550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124812 (or 124807 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 1451205550 is about 38094.6918874533. The cubic root of 1451205550 is about 1132.1647879694.

The spelling of 1451205550 in words is "one billion, four hundred fifty-one million, two hundred five thousand, five hundred fifty".