51046545 has 32 divisors (see below), whose sum is σ = 92980224. Its totient is φ = 23672000.

The previous prime is 51046531. The next prime is 51046549. The reversal of 51046545 is 54564015.

It is not a de Polignac number, because 51046545 - 2⁷ = 51046417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51046549) 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 31 ways as a sum of consecutive naturals, for example, 2931 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (2905632).

Almost surely, 2^51046545 is an apocalyptic number.

51046545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51046545 is a deficient number, since it is larger than the sum of its proper divisors (41933679).

51046545 is a wasteful number, since it uses less digits than its factorization.

51046545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13493.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 51046545 is about 7144.6864871735. The cubic root of 51046545 is about 370.9557588743.

The spelling of 51046545 in words is "fifty-one million, forty-six thousand, five hundred forty-five".