51163045 has 8 divisors (see below), whose sum is σ = 63055224. Its totient is φ = 39824064.

The previous prime is 51163043. The next prime is 51163117. The reversal of 51163045 is 54036115.

It can be written as a sum of positive squares in 4 ways, for example, as 17313921 + 33849124 = 4161^2 + 5818^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51163045 - 2¹ = 51163043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51163043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138094 + ... + 138463.

It is an arithmetic number, because the mean of its divisors is an integer number (7881903).

Almost surely, 2^51163045 is an apocalyptic number.

It is an amenable number.

51163045 is a deficient number, since it is larger than the sum of its proper divisors (11892179).

51163045 is a wasteful number, since it uses less digits than its factorization.

51163045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276599.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51163045 is about 7152.8347527396. The cubic root of 51163045 is about 371.2377466887.

The spelling of 51163045 in words is "fifty-one million, one hundred sixty-three thousand, forty-five".