45111550 has 24 divisors (see below), whose sum is σ = 91536552. Its totient is φ = 16404000.

The previous prime is 45111511. The next prime is 45111551. The reversal of 45111550 is 5511154.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45111551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40461 + ... + 41560.

It is an arithmetic number, because the mean of its divisors is an integer number (3814023).

Almost surely, 2^45111550 is an apocalyptic number.

45111550 is an abundant number, since it is smaller than the sum of its proper divisors (46425002).

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

45111550 is a wasteful number, since it uses less digits than its factorization.

45111550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82044 (or 82039 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 45111550 is about 6716.5132323252. The cubic root of 45111550 is about 355.9829927069.

The spelling of 45111550 in words is "forty-five million, one hundred eleven thousand, five hundred fifty".