51022545 has 32 divisors (see below), whose sum is σ = 94494720. Its totient is φ = 23025600.

The previous prime is 51022541. The next prime is 51022549. The reversal of 51022545 is 54522015.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51022541) and next prime (51022549).

It is not a de Polignac number, because 51022545 - 2² = 51022541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51022541) 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, 5220 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (2952960).

Almost surely, 2^51022545 is an apocalyptic number.

It is an amenable number.

51022545 is a deficient number, since it is larger than the sum of its proper divisors (43472175).

51022545 is a wasteful number, since it uses less digits than its factorization.

51022545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51022545 is about 7143.0067198624. The cubic root of 51022545 is about 370.8976136799.

The spelling of 51022545 in words is "fifty-one million, twenty-two thousand, five hundred forty-five".