51255300 has 36 divisors (see below), whose sum is σ = 148299536. Its totient is φ = 13668000.

The previous prime is 51255299. The next prime is 51255301. The reversal of 51255300 is 355215.

It is an interprime number because it is at equal distance from previous prime (51255299) and next prime (51255301).

It is not an unprimeable number, because it can be changed into a prime (51255301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85126 + ... + 85725.

Almost surely, 2^51255300 is an apocalyptic number.

51255300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51255300 is an abundant number, since it is smaller than the sum of its proper divisors (97044236).

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

51255300 is a wasteful number, since it uses less digits than its factorization.

51255300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170868 (or 170861 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51255300 is about 7159.2806901252. The cubic root of 51255300 is about 371.4607460153.

The spelling of 51255300 in words is "fifty-one million, two hundred fifty-five thousand, three hundred".