51294049 has 4 divisors (see below), whose sum is σ = 54311364. Its totient is φ = 48276736.

The previous prime is 51294031. The next prime is 51294059. The reversal of 51294049 is 94049215.

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 15210000 + 36084049 = 3900^2 + 6007^2 .

It is not a de Polignac number, because 51294049 - 2⁵ = 51294017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51294059) 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, 1508632 + ... + 1508665.

It is an arithmetic number, because the mean of its divisors is an integer number (13577841).

Almost surely, 2^51294049 is an apocalyptic number.

It is an amenable number.

51294049 is a deficient number, since it is larger than the sum of its proper divisors (3017315).

51294049 is a wasteful number, since it uses less digits than its factorization.

51294049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017314.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 51294049 is about 7161.9863864713. The cubic root of 51294049 is about 371.5543305275.

The spelling of 51294049 in words is "fifty-one million, two hundred ninety-four thousand, forty-nine".