52405345 has 16 divisors (see below), whose sum is σ = 65138688. Its totient is φ = 40432320.

The previous prime is 52405337. The next prime is 52405387. The reversal of 52405345 is 54350425.

52405345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52405345 - 2³ = 52405337 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 86032 + ... + 86638.

It is an arithmetic number, because the mean of its divisors is an integer number (4071168).

Almost surely, 2^52405345 is an apocalyptic number.

It is an amenable number.

52405345 is a deficient number, since it is larger than the sum of its proper divisors (12733343).

52405345 is a wasteful number, since it uses less digits than its factorization.

52405345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 52405345 is about 7239.1536107476. The cubic root of 52405345 is about 374.2184493113.

It can be divided in two parts, 5240 and 5345, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 52405345 in words is "fifty-two million, four hundred five thousand, three hundred forty-five".