51034549 has 4 divisors (see below), whose sum is σ = 51077836. Its totient is φ = 50991264.

The previous prime is 51034547. The next prime is 51034559. The reversal of 51034549 is 94543015.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 49252324 = 1335^2 + 7018^2 .

It is a cyclic number.

It is not a de Polignac number, because 51034549 - 2¹ = 51034547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51034549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034541) 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, 19824 + ... + 22249.

It is an arithmetic number, because the mean of its divisors is an integer number (12769459).

Almost surely, 2^51034549 is an apocalyptic number.

It is an amenable number.

51034549 is a deficient number, since it is larger than the sum of its proper divisors (43287).

51034549 is a wasteful number, since it uses less digits than its factorization.

51034549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 51034549 is about 7143.8469328507. The cubic root of 51034549 is about 370.9266982466.

The spelling of 51034549 in words is "fifty-one million, thirty-four thousand, five hundred forty-nine".