51420327 has 16 divisors (see below), whose sum is σ = 82479360. Its totient is φ = 27836352.

The previous prime is 51420319. The next prime is 51420331. The reversal of 51420327 is 72302415.

It is not a de Polignac number, because 51420327 - 2³ = 51420319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51420297 and 51420306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51420307) 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, 64038 + ... + 64835.

It is an arithmetic number, because the mean of its divisors is an integer number (5154960).

Almost surely, 2^51420327 is an apocalyptic number.

51420327 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

51420327 is a deficient number, since it is larger than the sum of its proper divisors (31059033).

51420327 is a wasteful number, since it uses less digits than its factorization.

51420327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128902.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 51420327 is about 7170.7968176486. The cubic root of 51420327 is about 371.8589837228.

The spelling of 51420327 in words is "fifty-one million, four hundred twenty thousand, three hundred twenty-seven".