45164550 has 48 divisors (see below), whose sum is σ = 112617792. Its totient is φ = 11978400.

The previous prime is 45164527. The next prime is 45164569. The reversal of 45164550 is 5546154.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 30937 + ... + 32363.

It is an arithmetic number, because the mean of its divisors is an integer number (2346204).

Almost surely, 2^45164550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45164550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56308896).

45164550 is an abundant number, since it is smaller than the sum of its proper divisors (67453242).

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

45164550 is a wasteful number, since it uses less digits than its factorization.

45164550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 45164550 is about 6720.4575737073. The cubic root of 45164550 is about 356.1223488486.

The spelling of 45164550 in words is "forty-five million, one hundred sixty-four thousand, five hundred fifty".