1553440105 has 16 divisors (see below), whose sum is σ = 2131113600. Its totient is φ = 1064875392.

The previous prime is 1553440081. The next prime is 1553440139. The reversal of 1553440105 is 5010443551.

It is not a de Polignac number, because 1553440105 - 2¹¹ = 1553438057 is a prime.

It is a super-2 number, since 2×1553440105² = 4826352319644822050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157942 + ... + 167488.

It is an arithmetic number, because the mean of its divisors is an integer number (133194600).

Almost surely, 2^1553440105 is an apocalyptic number.

It is an amenable number.

1553440105 is a deficient number, since it is larger than the sum of its proper divisors (577673495).

1553440105 is an equidigital number, since it uses as much as digits as its factorization.

1553440105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14208.

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

The square root of 1553440105 is about 39413.7045328145. The cubic root of 1553440105 is about 1158.1500698400.

Adding to 1553440105 its reverse (5010443551), we get a palindrome (6563883656).

The spelling of 1553440105 in words is "one billion, five hundred fifty-three million, four hundred forty thousand, one hundred five".