45253553 has 8 divisors (see below), whose sum is σ = 46572648. Its totient is φ = 43939584.

The previous prime is 45253547. The next prime is 45253561. The reversal of 45253553 is 35535254.

It can be written as a sum of positive squares in 4 ways, for example, as 1270129 + 43983424 = 1127^2 + 6632^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45253553 - 2⁸ = 45253297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45250553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23225 + ... + 25097.

It is an arithmetic number, because the mean of its divisors is an integer number (5821581).

Almost surely, 2^45253553 is an apocalyptic number.

It is an amenable number.

45253553 is a deficient number, since it is larger than the sum of its proper divisors (1319095).

45253553 is a wasteful number, since it uses less digits than its factorization.

45253553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563.

The product of its digits is 45000, while the sum is 32.

The square root of 45253553 is about 6727.0761107631. The cubic root of 45253553 is about 356.3561248208.

The spelling of 45253553 in words is "forty-five million, two hundred fifty-three thousand, five hundred fifty-three".