45455047 has 4 divisors (see below), whose sum is σ = 49587336. Its totient is φ = 41322760.

The previous prime is 45455029. The next prime is 45455051. The reversal of 45455047 is 74055454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45455047 - 2¹¹ = 45452999 is a prime.

It is a super-2 number, since 2×45455047² = 4132322595544418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45455017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066128 + ... + 2066149.

It is an arithmetic number, because the mean of its divisors is an integer number (12396834).

Almost surely, 2^45455047 is an apocalyptic number.

45455047 is a deficient number, since it is larger than the sum of its proper divisors (4132289).

45455047 is a wasteful number, since it uses less digits than its factorization.

45455047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132288.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 45455047 is about 6742.0358201362. The cubic root of 45455047 is about 356.8842403624.

The spelling of 45455047 in words is "forty-five million, four hundred fifty-five thousand, forty-seven".