252355545 has 24 divisors (see below), whose sum is σ = 471064776. Its totient is φ = 124236288.

The previous prime is 252355529. The next prime is 252355547. The reversal of 252355545 is 545553252.

252355545 is a `hidden beast` number, since 252 + 355 + 54 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25190361 + 227165184 = 5019^2 + 15072^2 .

It is not a de Polignac number, because 252355545 - 2⁴ = 252355529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252355547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215104 + ... + 216273.

It is an arithmetic number, because the mean of its divisors is an integer number (19627699).

Almost surely, 2^252355545 is an apocalyptic number.

It is an amenable number.

252355545 is a deficient number, since it is larger than the sum of its proper divisors (218709231).

252355545 is a wasteful number, since it uses less digits than its factorization.

252355545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431401 (or 431398 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 252355545 is about 15885.7025340398. The cubic root of 252355545 is about 631.9328770579.

The spelling of 252355545 in words is "two hundred fifty-two million, three hundred fifty-five thousand, five hundred forty-five".