45778551 has 24 divisors (see below), whose sum is σ = 75542400. Its totient is φ = 24145056.

The previous prime is 45778549. The next prime is 45778573. The reversal of 45778551 is 15587754.

It is not a de Polignac number, because 45778551 - 2¹ = 45778549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45778511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2901 + ... + 9998.

It is an arithmetic number, because the mean of its divisors is an integer number (3147600).

Almost surely, 2^45778551 is an apocalyptic number.

45778551 is a deficient number, since it is larger than the sum of its proper divisors (29763849).

45778551 is a wasteful number, since it uses less digits than its factorization.

45778551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935 (or 12922 counting only the distinct ones).

The product of its digits is 196000, while the sum is 42.

The square root of 45778551 is about 6765.9848507072. The cubic root of 45778551 is about 357.7288892352.

The spelling of 45778551 in words is "forty-five million, seven hundred seventy-eight thousand, five hundred fifty-one".