51255204 has 192 divisors, whose sum is σ = 170698752. Its totient is φ = 11520000.

The previous prime is 51255173. The next prime is 51255227. The reversal of 51255204 is 40255215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204079 + ... + 204329.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^51255204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51255204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85349376).

51255204 is an abundant number, since it is smaller than the sum of its proper divisors (119443548).

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

51255204 is a wasteful number, since it uses less digits than its factorization.

51255204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51255204 is about 7159.2739855379. The cubic root of 51255204 is about 371.4605141027.

It can be divided in two parts, 51 and 255204, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 51255204 in words is "fifty-one million, two hundred fifty-five thousand, two hundred four".