45055553 has 4 divisors (see below), whose sum is σ = 45307440. Its totient is φ = 44803668.

The previous prime is 45055541. The next prime is 45055561. The reversal of 45055553 is 35555054.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35555054 = 2 ⋅17777527.

It is a cyclic number.

It is not a de Polignac number, because 45055553 - 2⁴ = 45055537 is a prime.

It is a super-2 number, since 2×45055553² = 4060005712271618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45055513) 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, 125675 + ... + 126032.

It is an arithmetic number, because the mean of its divisors is an integer number (11326860).

Almost surely, 2^45055553 is an apocalyptic number.

It is an amenable number.

45055553 is a deficient number, since it is larger than the sum of its proper divisors (251887).

45055553 is a wasteful number, since it uses less digits than its factorization.

45055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251886.

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 45055553 is about 6712.3433315050. The cubic root of 45055553 is about 355.8356377364.

The spelling of 45055553 in words is "forty-five million, fifty-five thousand, five hundred fifty-three".