51500134 has 32 divisors (see below), whose sum is σ = 90326016. Its totient is φ = 21567840.

The previous prime is 51500101. The next prime is 51500147. The reversal of 51500134 is 43100515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195687 + ... + 195949.

It is an arithmetic number, because the mean of its divisors is an integer number (2822688).

Almost surely, 2^51500134 is an apocalyptic number.

51500134 is a deficient number, since it is larger than the sum of its proper divisors (38825882).

51500134 is a wasteful number, since it uses less digits than its factorization.

51500134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51500134 is about 7176.3593834200. The cubic root of 51500134 is about 372.0512657215.

Adding to 51500134 its reverse (43100515), we get a palindrome (94600649).

The spelling of 51500134 in words is "fifty-one million, five hundred thousand, one hundred thirty-four".