51214445 has 16 divisors (see below), whose sum is σ = 64323072. Its totient is φ = 39072000.

The previous prime is 51214409. The next prime is 51214447. The reversal of 51214445 is 54441215.

It is a de Polignac number, because none of the positive numbers 2^k-51214445 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 (51214447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67820 + ... + 68570.

It is an arithmetic number, because the mean of its divisors is an integer number (4020192).

Almost surely, 2^51214445 is an apocalyptic number.

It is an amenable number.

51214445 is a deficient number, since it is larger than the sum of its proper divisors (13108627).

51214445 is a wasteful number, since it uses less digits than its factorization.

51214445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372.

The product of its digits is 3200, while the sum is 26.

The square root of 51214445 is about 7156.4268318764. The cubic root of 51214445 is about 371.3620241090.

The spelling of 51214445 in words is "fifty-one million, two hundred fourteen thousand, four hundred forty-five".