51325750 has 64 divisors (see below), whose sum is σ = 111121920. Its totient is φ = 17388000.

The previous prime is 51325741. The next prime is 51325753. The reversal of 51325750 is 5752315.

It is a super-2 number, since 2×51325750² = 5268665226125000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51325753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243145 + ... + 243355.

It is an arithmetic number, because the mean of its divisors is an integer number (1736280).

Almost surely, 2^51325750 is an apocalyptic number.

51325750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51325750 is an abundant number, since it is smaller than the sum of its proper divisors (59796170).

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

51325750 is a wasteful number, since it uses less digits than its factorization.

51325750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 51325750 is about 7164.1991876273. The cubic root of 51325750 is about 371.6308580416.

The spelling of 51325750 in words is "fifty-one million, three hundred twenty-five thousand, seven hundred fifty".