51502345 has 8 divisors (see below), whose sum is σ = 61948800. Its totient is φ = 41104560.

The previous prime is 51502343. The next prime is 51502351. The reversal of 51502345 is 54320515.

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

It is not a de Polignac number, because 51502345 - 2¹ = 51502343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51502343) 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, 9795 + ... + 14104.

It is an arithmetic number, because the mean of its divisors is an integer number (7743600).

Almost surely, 2^51502345 is an apocalyptic number.

It is an amenable number.

51502345 is a deficient number, since it is larger than the sum of its proper divisors (10446455).

51502345 is a wasteful number, since it uses less digits than its factorization.

51502345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24335.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 51502345 is about 7176.5134292357. The cubic root of 51502345 is about 372.0565899379.

The spelling of 51502345 in words is "fifty-one million, five hundred two thousand, three hundred forty-five".