51148200 has 48 divisors (see below), whose sum is σ = 158561280. Its totient is φ = 13639360.

The previous prime is 51148193. The next prime is 51148213. The reversal of 51148200 is 284115.

It is a super-2 number, since 2×51148200² = 5232276726480000, which contains 22 as substring.

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, 42024 + ... + 43223.

It is an arithmetic number, because the mean of its divisors is an integer number (3303360).

Almost surely, 2^51148200 is an apocalyptic number.

51148200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51148200 is an abundant number, since it is smaller than the sum of its proper divisors (107413080).

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

51148200 is a wasteful number, since it uses less digits than its factorization.

51148200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85266 (or 85257 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 51148200 is about 7151.7969769842. The cubic root of 51148200 is about 371.2018382353.

The spelling of 51148200 in words is "fifty-one million, one hundred forty-eight thousand, two hundred".