51454345 has 8 divisors (see below), whose sum is σ = 61873920. Its totient is φ = 41077680.

The previous prime is 51454343. The next prime is 51454357. The reversal of 51454345 is 54345415.

It is a happy number.

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

It is not a de Polignac number, because 51454345 - 2¹ = 51454343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51454343) 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, 8025 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (7734240).

Almost surely, 2^51454345 is an apocalyptic number.

It is an amenable number.

51454345 is a deficient number, since it is larger than the sum of its proper divisors (10419575).

51454345 is a wasteful number, since it uses less digits than its factorization.

51454345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21455.

The product of its digits is 24000, while the sum is 31.

The square root of 51454345 is about 7173.1684073358. The cubic root of 51454345 is about 371.9409688772.

The spelling of 51454345 in words is "fifty-one million, four hundred fifty-four thousand, three hundred forty-five".