45501646 has 4 divisors (see below), whose sum is σ = 68252472. Its totient is φ = 22750822.

The previous prime is 45501641. The next prime is 45501649. The reversal of 45501646 is 64610554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64610554 = 2 ⋅32305277.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45501641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11375410 + ... + 11375413.

It is an arithmetic number, because the mean of its divisors is an integer number (17063118).

Almost surely, 2^45501646 is an apocalyptic number.

45501646 is a deficient number, since it is larger than the sum of its proper divisors (22750826).

45501646 is a wasteful number, since it uses less digits than its factorization.

45501646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22750825.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 45501646 is about 6745.4907901501. The cubic root of 45501646 is about 357.0061539895.

The spelling of 45501646 in words is "forty-five million, five hundred one thousand, six hundred forty-six".