52451815 has 8 divisors (see below), whose sum is σ = 67783968. Its totient is φ = 38733600.

The previous prime is 52451801. The next prime is 52451827. The reversal of 52451815 is 51815425.

52451815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52451815 - 2¹⁷ = 52320743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403411 + ... + 403540.

It is an arithmetic number, because the mean of its divisors is an integer number (8472996).

Almost surely, 2^52451815 is an apocalyptic number.

52451815 is a deficient number, since it is larger than the sum of its proper divisors (15332153).

52451815 is a wasteful number, since it uses less digits than its factorization.

52451815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806969.

The product of its digits is 8000, while the sum is 31.

The square root of 52451815 is about 7242.3625288990. The cubic root of 52451815 is about 374.3290283229.

The spelling of 52451815 in words is "fifty-two million, four hundred fifty-one thousand, eight hundred fifteen".