51401350 has 144 divisors (see below), whose sum is σ = 130705920. Its totient is φ = 14601600.

The previous prime is 51401333. The next prime is 51401359. The reversal of 51401350 is 5310415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51401359) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 650611 + ... + 650689.

It is an arithmetic number, because the mean of its divisors is an integer number (907680).

Almost surely, 2^51401350 is an apocalyptic number.

51401350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51401350 is an abundant number, since it is smaller than the sum of its proper divisors (79304570).

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

51401350 is a wasteful number, since it uses less digits than its factorization.

51401350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51401350 is about 7169.4734813653. The cubic root of 51401350 is about 371.8132324500.

Adding to 51401350 its reverse (5310415), we get a palindrome (56711765).

The spelling of 51401350 in words is "fifty-one million, four hundred one thousand, three hundred fifty".