51200278 has 8 divisors (see below), whose sum is σ = 77136480. Its totient is φ = 25488120.

The previous prime is 51200273. The next prime is 51200287. The reversal of 51200278 is 87200215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51200273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55438 + ... + 56353.

It is an arithmetic number, because the mean of its divisors is an integer number (9642060).

Almost surely, 2^51200278 is an apocalyptic number.

51200278 is a deficient number, since it is larger than the sum of its proper divisors (25936202).

51200278 is a wasteful number, since it uses less digits than its factorization.

51200278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112022.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 51200278 is about 7155.4369538135. The cubic root of 51200278 is about 371.3277787512.

The spelling of 51200278 in words is "fifty-one million, two hundred thousand, two hundred seventy-eight".