51373854 has 96 divisors (see below), whose sum is σ = 133099200. Its totient is φ = 14309568.

The previous prime is 51373849. The next prime is 51373873. The reversal of 51373854 is 45837315.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327144 + ... + 327300.

It is an arithmetic number, because the mean of its divisors is an integer number (1386450).

Almost surely, 2^51373854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51373854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66549600).

51373854 is an abundant number, since it is smaller than the sum of its proper divisors (81725346).

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

51373854 is a wasteful number, since it uses less digits than its factorization.

51373854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 222 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 51373854 is about 7167.5556502897. Note that the first 3 decimals coincide. The cubic root of 51373854 is about 371.7469229068.

The spelling of 51373854 in words is "fifty-one million, three hundred seventy-three thousand, eight hundred fifty-four".