45501985 has 8 divisors (see below), whose sum is σ = 54659880. Its totient is φ = 36363264.

The previous prime is 45501977. The next prime is 45501991. The reversal of 45501985 is 58910554.

It can be written as a sum of positive squares in 4 ways, for example, as 15460624 + 30041361 = 3932^2 + 5481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45501985 - 2³ = 45501977 is a prime.

It is a super-4 number, since 4×45501985⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089 + ... + 9601.

It is an arithmetic number, because the mean of its divisors is an integer number (6832485).

Almost surely, 2^45501985 is an apocalyptic number.

It is an amenable number.

45501985 is a deficient number, since it is larger than the sum of its proper divisors (9157895).

45501985 is a wasteful number, since it uses less digits than its factorization.

45501985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 45501985 is about 6745.5159180006. The cubic root of 45501985 is about 357.0070405859.

The spelling of 45501985 in words is "forty-five million, five hundred one thousand, nine hundred eighty-five".