51313078 has 8 divisors (see below), whose sum is σ = 78231600. Its totient is φ = 25235880.

The previous prime is 51313033. The next prime is 51313081. The reversal of 51313078 is 87031315.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210178 + ... + 210421.

It is an arithmetic number, because the mean of its divisors is an integer number (9778950).

Almost surely, 2^51313078 is an apocalyptic number.

51313078 is a deficient number, since it is larger than the sum of its proper divisors (26918522).

51313078 is a wasteful number, since it uses less digits than its factorization.

51313078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420662.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51313078 is about 7163.3147355118. The cubic root of 51313078 is about 371.6002710955.

It can be divided in two parts, 5131307 and 8, that added together give a palindrome (5131315).

The spelling of 51313078 in words is "fifty-one million, three hundred thirteen thousand, seventy-eight".