51452515 has 8 divisors (see below), whose sum is σ = 61892208. Its totient is φ = 41062560.

The previous prime is 51452503. The next prime is 51452537. The reversal of 51452515 is 51525415.

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

It is not a de Polignac number, because 51452515 - 2⁵ = 51452483 is a prime.

It is a super-2 number, since 2×51452515² = 5294722599650450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10117 + ... + 14326.

It is an arithmetic number, because the mean of its divisors is an integer number (7736526).

Almost surely, 2^51452515 is an apocalyptic number.

51452515 is a deficient number, since it is larger than the sum of its proper divisors (10439693).

51452515 is a wasteful number, since it uses less digits than its factorization.

51452515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24869.

The product of its digits is 5000, while the sum is 28.

The square root of 51452515 is about 7173.0408475067. The cubic root of 51452515 is about 371.9365594016.

Subtracting 51452515 from its reverse (51525415), we obtain a square (72900 = 270²).

The spelling of 51452515 in words is "fifty-one million, four hundred fifty-two thousand, five hundred fifteen".