52320615 has 32 divisors (see below), whose sum is σ = 85804032. Its totient is φ = 27216000.

The previous prime is 52320613. The next prime is 52320641. The reversal of 52320615 is 51602325.

It is not a de Polignac number, because 52320615 - 2¹ = 52320613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52320613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192930 + ... + 193200.

It is an arithmetic number, because the mean of its divisors is an integer number (2681376).

Almost surely, 2^52320615 is an apocalyptic number.

52320615 is a deficient number, since it is larger than the sum of its proper divisors (33483417).

52320615 is a wasteful number, since it uses less digits than its factorization.

52320615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52320615 is about 7233.2990398573. The cubic root of 52320615 is about 374.0166592520.

The spelling of 52320615 in words is "fifty-two million, three hundred twenty thousand, six hundred fifteen".