45553638 has 32 divisors (see below), whose sum is σ = 98463456. Its totient is φ = 13966848.

The previous prime is 45553633. The next prime is 45553643. The reversal of 45553638 is 83635554.

It is an interprime number because it is at equal distance from previous prime (45553633) and next prime (45553643).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45553596 and 45553605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45553631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25420 + ... + 27152.

It is an arithmetic number, because the mean of its divisors is an integer number (3076983).

Almost surely, 2^45553638 is an apocalyptic number.

45553638 is an abundant number, since it is smaller than the sum of its proper divisors (52909818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45553638 is a wasteful number, since it uses less digits than its factorization.

45553638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088.

The product of its digits is 216000, while the sum is 39.

The square root of 45553638 is about 6749.3435236325. The cubic root of 45553638 is about 357.1420787335.

The spelling of 45553638 in words is "forty-five million, five hundred fifty-three thousand, six hundred thirty-eight".