51452015 has 8 divisors (see below), whose sum is σ = 63411360. Its totient is φ = 40048992.

The previous prime is 51451999. The next prime is 51452017. The reversal of 51452015 is 51025415.

It is a happy number.

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 51452015 - 2⁴ = 51451999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452017) 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, 138875 + ... + 139244.

It is an arithmetic number, because the mean of its divisors is an integer number (7926420).

Almost surely, 2^51452015 is an apocalyptic number.

51452015 is a deficient number, since it is larger than the sum of its proper divisors (11959345).

51452015 is a wasteful number, since it uses less digits than its factorization.

51452015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278161.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 51452015 is about 7173.0059946999. The cubic root of 51452015 is about 371.9353546086.

The spelling of 51452015 in words is "fifty-one million, four hundred fifty-two thousand, fifteen".