52402545 has 80 divisors (see below), whose sum is σ = 104282640. Its totient is φ = 25007616.

The previous prime is 52402543. The next prime is 52402607. The reversal of 52402545 is 54520425.

It can be written as a sum of positive squares in 8 ways, for example, as 4626801 + 47775744 = 2151^2 + 6912^2 .

It is not a de Polignac number, because 52402545 - 2¹ = 52402543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52402541) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 194671 + ... + 194939.

It is an arithmetic number, because the mean of its divisors is an integer number (1303533).

Almost surely, 2^52402545 is an apocalyptic number.

It is an amenable number.

52402545 is a deficient number, since it is larger than the sum of its proper divisors (51880095).

52402545 is a wasteful number, since it uses less digits than its factorization.

52402545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 52402545 is about 7238.9602153901. The cubic root of 52402545 is about 374.2117844039.

The spelling of 52402545 in words is "fifty-two million, four hundred two thousand, five hundred forty-five".