253036745 has 32 divisors (see below), whose sum is σ = 340290720. Its totient is φ = 179343360.

The previous prime is 253036741. The next prime is 253036757. The reversal of 253036745 is 547630352.

It can be written as a sum of positive squares in 16 ways, for example, as 119333776 + 133702969 = 10924^2 + 11563^2 .

It is not a de Polignac number, because 253036745 - 2² = 253036741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253036741) 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, 454007 + ... + 454563.

It is an arithmetic number, because the mean of its divisors is an integer number (10634085).

Almost surely, 2^253036745 is an apocalyptic number.

It is an amenable number.

253036745 is a deficient number, since it is larger than the sum of its proper divisors (87253975).

253036745 is a wasteful number, since it uses less digits than its factorization.

253036745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 75600, while the sum is 35.

The square root of 253036745 is about 15907.1287478288. The cubic root of 253036745 is about 632.5009722576.

The spelling of 253036745 in words is "two hundred fifty-three million, thirty-six thousand, seven hundred forty-five".