1450551561 has 16 divisors (see below), whose sum is σ = 2042039040. Its totient is φ = 913358160.

The previous prime is 1450551559. The next prime is 1450551563. The reversal of 1450551561 is 1651550541.

It is an interprime number because it is at equal distance from previous prime (1450551559) and next prime (1450551563).

It is not a de Polignac number, because 1450551561 - 2¹ = 1450551559 is a prime.

It is a super-2 number, since 2×1450551561² = 4208199662239073442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1450551563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19575 + ... + 57308.

It is an arithmetic number, because the mean of its divisors is an integer number (127627440).

Almost surely, 2^1450551561 is an apocalyptic number.

It is an amenable number.

1450551561 is a deficient number, since it is larger than the sum of its proper divisors (591487479).

1450551561 is a wasteful number, since it uses less digits than its factorization.

1450551561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77236.

The product of its (nonzero) digits is 15000, while the sum is 33.

The square root of 1450551561 is about 38086.1071914681. The cubic root of 1450551561 is about 1131.9946915578.

It can be divided in two parts, 14505 and 51561, that added together give a palindrome (66066).

The spelling of 1450551561 in words is "one billion, four hundred fifty million, five hundred fifty-one thousand, five hundred sixty-one".