51450379 has 8 divisors (see below), whose sum is σ = 55539360. Its totient is φ = 47515776.

The previous prime is 51450353. The next prime is 51450391. The reversal of 51450379 is 97305415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51450379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51450479) 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, 37902 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (6942420).

Almost surely, 2^51450379 is an apocalyptic number.

51450379 is a deficient number, since it is larger than the sum of its proper divisors (4088981).

51450379 is a wasteful number, since it uses less digits than its factorization.

51450379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77189.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 51450379 is about 7172.8919551322. The cubic root of 51450379 is about 371.9314124715.

It can be divided in two parts, 514 and 50379, that multiplied together give a triangular number (25894806 = T₇₁₉₆).

The spelling of 51450379 in words is "fifty-one million, four hundred fifty thousand, three hundred seventy-nine".