45440042550 has 48 divisors (see below), whose sum is σ = 128790066432. Its totient is φ = 10386295200.

The previous prime is 45440042537. The next prime is 45440042581. The reversal of 45440042550 is 5524004454.

It is a super-3 number, since 3×45440042550³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21637066 + ... + 21639165.

It is an arithmetic number, because the mean of its divisors is an integer number (2683126384).

Almost surely, 2^45440042550 is an apocalyptic number.

45440042550 is an abundant number, since it is smaller than the sum of its proper divisors (83350023882).

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

45440042550 is a wasteful number, since it uses less digits than its factorization.

45440042550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43276253 (or 43276248 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

The spelling of 45440042550 in words is "forty-five billion, four hundred forty million, forty-two thousand, five hundred fifty".