45135553 has 4 divisors (see below), whose sum is σ = 45162288. Its totient is φ = 45108820.

The previous prime is 45135551. The next prime is 45135581. The reversal of 45135553 is 35553154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45135553 - 2¹ = 45135551 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45135551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10651 + ... + 14272.

It is an arithmetic number, because the mean of its divisors is an integer number (11290572).

Almost surely, 2^45135553 is an apocalyptic number.

It is an amenable number.

45135553 is a deficient number, since it is larger than the sum of its proper divisors (26735).

45135553 is a wasteful number, since it uses less digits than its factorization.

45135553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734.

The product of its digits is 22500, while the sum is 31.

The square root of 45135553 is about 6718.2998593394. The cubic root of 45135553 is about 356.0461187780.

The spelling of 45135553 in words is "forty-five million, one hundred thirty-five thousand, five hundred fifty-three".