51974049 has 24 divisors (see below), whose sum is σ = 74289088. Its totient is φ = 32313600.

The previous prime is 51974047. The next prime is 51974053. The reversal of 51974049 is 94047915.

It is not a de Polignac number, because 51974049 - 2¹ = 51974047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51973998 and 51974016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51974047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130719 + ... + 131115.

Almost surely, 2^51974049 is an apocalyptic number.

It is an amenable number.

51974049 is a deficient number, since it is larger than the sum of its proper divisors (22315039).

51974049 is a wasteful number, since it uses less digits than its factorization.

51974049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 51974049 is about 7209.3029482745. The cubic root of 51974049 is about 373.1890140697.

The spelling of 51974049 in words is "fifty-one million, nine hundred seventy-four thousand, forty-nine".