45251616 has 48 divisors (see below), whose sum is σ = 125042400. Its totient is φ = 14289408.

The previous prime is 45251611. The next prime is 45251617. The reversal of 45251616 is 61615254.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×45251616² = 4095417501222912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45251611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10581 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (2605050).

Almost surely, 2^45251616 is an apocalyptic number.

It is an amenable number.

45251616 is an abundant number, since it is smaller than the sum of its proper divisors (79790784).

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

45251616 is a wasteful number, since it uses less digits than its factorization.

45251616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24841 (or 24833 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 45251616 is about 6726.9321387985. The cubic root of 45251616 is about 356.3510403459.

The spelling of 45251616 in words is "forty-five million, two hundred fifty-one thousand, six hundred sixteen".