51214860 has 36 divisors (see below), whose sum is σ = 155352288. Its totient is φ = 13657248.

The previous prime is 51214853. The next prime is 51214871. The reversal of 51214860 is 6841215.

51214860 is a `hidden beast` number, since 512 + 148 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142084 + ... + 142443.

Almost surely, 2^51214860 is an apocalyptic number.

It is an amenable number.

51214860 is an abundant number, since it is smaller than the sum of its proper divisors (104137428).

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

51214860 is a wasteful number, since it uses less digits than its factorization.

51214860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284542 (or 284537 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 51214860 is about 7156.4558267343. The cubic root of 51214860 is about 371.3630271777.

It can be divided in two parts, 512148 and 60, that multiplied together give a triangular number (30728880 = T₇₈₃₉).

The spelling of 51214860 in words is "fifty-one million, two hundred fourteen thousand, eight hundred sixty".