45385251 has 8 divisors (see below), whose sum is σ = 60920400. Its totient is φ = 30053472.

The previous prime is 45385247. The next prime is 45385289. The reversal of 45385251 is 15258354.

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

It is not a de Polignac number, because 45385251 - 2² = 45385247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45385201) 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, 50320 + ... + 51213.

It is an arithmetic number, because the mean of its divisors is an integer number (7615050).

Almost surely, 2^45385251 is an apocalyptic number.

45385251 is a deficient number, since it is larger than the sum of its proper divisors (15535149).

45385251 is a wasteful number, since it uses less digits than its factorization.

45385251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101685.

The product of its digits is 24000, while the sum is 33.

The square root of 45385251 is about 6736.8576502699. The cubic root of 45385251 is about 356.7014821266.

The spelling of 45385251 in words is "forty-five million, three hundred eighty-five thousand, two hundred fifty-one".