253587745 has 8 divisors (see below), whose sum is σ = 314798760. Its totient is φ = 195874560.

The previous prime is 253587721. The next prime is 253587769. The reversal of 253587745 is 547785352.

253587745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (253587721) and next prime (253587769).

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 251444449 = 1464^2 + 15857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253587745 - 2⁵ = 253587713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253587695 and 253587704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874296 + ... + 874585.

It is an arithmetic number, because the mean of its divisors is an integer number (39349845).

Almost surely, 2^253587745 is an apocalyptic number.

It is an amenable number.

253587745 is a deficient number, since it is larger than the sum of its proper divisors (61211015).

253587745 is a wasteful number, since it uses less digits than its factorization.

253587745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748915.

The product of its digits is 1176000, while the sum is 46.

The square root of 253587745 is about 15924.4386086292. The cubic root of 253587745 is about 632.9597401160.

The spelling of 253587745 in words is "two hundred fifty-three million, five hundred eighty-seven thousand, seven hundred forty-five".