51137268 has 48 divisors (see below), whose sum is σ = 146858880. Its totient is φ = 13486464.

The previous prime is 51137267. The next prime is 51137279. The reversal of 51137268 is 86273115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51137263) 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, 22323 + ... + 24506.

It is an arithmetic number, because the mean of its divisors is an integer number (3059560).

Almost surely, 2^51137268 is an apocalyptic number.

It is an amenable number.

51137268 is an abundant number, since it is smaller than the sum of its proper divisors (95721612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51137268 is a wasteful number, since it uses less digits than its factorization.

51137268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46856 (or 46854 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 51137268 is about 7151.0326527013. The cubic root of 51137268 is about 371.1753904643.

The spelling of 51137268 in words is "fifty-one million, one hundred thirty-seven thousand, two hundred sixty-eight".