51538014 has 36 divisors (see below), whose sum is σ = 122745168. Its totient is φ = 15616920.

The previous prime is 51538001. The next prime is 51538021. The reversal of 51538014 is 41083515.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9654 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (3409588).

Almost surely, 2^51538014 is an apocalyptic number.

51538014 is an abundant number, since it is smaller than the sum of its proper divisors (71207154).

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

51538014 is a wasteful number, since it uses less digits than its factorization.

51538014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23693 (or 23679 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51538014 is about 7178.9981195150. The cubic root of 51538014 is about 372.1424619114.

Adding to 51538014 its sum of digits (27), we get a square (51538041 = 7179²).

The spelling of 51538014 in words is "fifty-one million, five hundred thirty-eight thousand, fourteen".