51357427 has 8 divisors (see below), whose sum is σ = 56341440. Its totient is φ = 46425960.

The previous prime is 51357419. The next prime is 51357431. The reversal of 51357427 is 72475315.

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

It is a cyclic number.

It is not a de Polignac number, because 51357427 - 2³ = 51357419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51357392 and 51357401.

It is not an unprimeable number, because it can be changed into a prime (51357407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11073 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (7042680).

Almost surely, 2^51357427 is an apocalyptic number.

51357427 is a deficient number, since it is larger than the sum of its proper divisors (4984013).

51357427 is a wasteful number, since it uses less digits than its factorization.

51357427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26273.

The product of its digits is 29400, while the sum is 34.

The square root of 51357427 is about 7166.4096310496. The cubic root of 51357427 is about 371.7072961498.

The spelling of 51357427 in words is "fifty-one million, three hundred fifty-seven thousand, four hundred twenty-seven".