51266144 has 12 divisors (see below), whose sum is σ = 100930284. Its totient is φ = 25633056.

The previous prime is 51266141. The next prime is 51266147. The reversal of 51266144 is 44166215.

It is an interprime number because it is at equal distance from previous prime (51266141) and next prime (51266147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801002 + ... + 801065.

It is an arithmetic number, because the mean of its divisors is an integer number (8410857).

Almost surely, 2^51266144 is an apocalyptic number.

It is an amenable number.

51266144 is a deficient number, since it is larger than the sum of its proper divisors (49664140).

51266144 is a wasteful number, since it uses less digits than its factorization.

51266144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602077 (or 1602069 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 51266144 is about 7160.0379887260. The cubic root of 51266144 is about 371.4869406156.

The spelling of 51266144 in words is "fifty-one million, two hundred sixty-six thousand, one hundred forty-four".