1105501551 has 64 divisors (see below), whose sum is σ = 1957063680. Its totient is φ = 537384960.

The previous prime is 1105501549. The next prime is 1105501559. The reversal of 1105501551 is 1551055011.

It is not a de Polignac number, because 1105501551 - 2¹ = 1105501549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105501559) 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 63 ways as a sum of consecutive naturals, for example, 772905 + ... + 774333.

It is an arithmetic number, because the mean of its divisors is an integer number (30579120).

Almost surely, 2^1105501551 is an apocalyptic number.

1105501551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1105501551 is a deficient number, since it is larger than the sum of its proper divisors (851562129).

1105501551 is a wasteful number, since it uses less digits than its factorization.

1105501551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 1105501551 is about 33249.0834610520. The cubic root of 1105501551 is about 1033.9982063703.

Adding to 1105501551 its reverse (1551055011), we get a palindrome (2656556562).

It can be divided in two parts, 110550 and 1551, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 1105501551 in words is "one billion, one hundred five million, five hundred one thousand, five hundred fifty-one".