51119400 has 48 divisors (see below), whose sum is σ = 158472000. Its totient is φ = 13631680.

The previous prime is 51119371. The next prime is 51119407. The reversal of 51119400 is 491115.

It is a super-2 number, since 2×51119400² = 5226386112720000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51119407) 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, 42000 + ... + 43199.

It is an arithmetic number, because the mean of its divisors is an integer number (3301500).

Almost surely, 2^51119400 is an apocalyptic number.

51119400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51119400 is an abundant number, since it is smaller than the sum of its proper divisors (107352600).

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

51119400 is a wasteful number, since it uses less digits than its factorization.

51119400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85218 (or 85209 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 51119400 is about 7149.7832134968. The cubic root of 51119400 is about 371.1321543227.

The spelling of 51119400 in words is "fifty-one million, one hundred nineteen thousand, four hundred".