51296250 has 40 divisors (see below), whose sum is σ = 128208960. Its totient is φ = 13678000.

The previous prime is 51296177. The next prime is 51296251. The reversal of 51296250 is 5269215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (51296251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3090 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (3205224).

Almost surely, 2^51296250 is an apocalyptic number.

51296250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51296250 is an abundant number, since it is smaller than the sum of its proper divisors (76912710).

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

51296250 is a wasteful number, since it uses less digits than its factorization.

51296250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13704 (or 13689 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 51296250 is about 7162.1400433111. The cubic root of 51296250 is about 371.5596448502.

The spelling of 51296250 in words is "fifty-one million, two hundred ninety-six thousand, two hundred fifty".