51978063 has 16 divisors (see below), whose sum is σ = 71992800. Its totient is φ = 33317760.

The previous prime is 51977983. The next prime is 51978127. The reversal of 51978063 is 36087915.

It is not a de Polignac number, because 51978063 - 2¹³ = 51969871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51978763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22293 + ... + 24513.

It is an arithmetic number, because the mean of its divisors is an integer number (4499550).

Almost surely, 2^51978063 is an apocalyptic number.

51978063 is a deficient number, since it is larger than the sum of its proper divisors (20014737).

51978063 is a wasteful number, since it uses less digits than its factorization.

51978063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 51978063 is about 7209.5813331982. The cubic root of 51978063 is about 373.1986210573.

The spelling of 51978063 in words is "fifty-one million, nine hundred seventy-eight thousand, sixty-three".