253740545 has 16 divisors (see below), whose sum is σ = 314737920. Its totient is φ = 196264704.

The previous prime is 253740527. The next prime is 253740629. The reversal of 253740545 is 545047352.

253740545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 253740545 - 2²⁶ = 186631681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13001 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (19671120).

Almost surely, 2^253740545 is an apocalyptic number.

It is an amenable number.

253740545 is a deficient number, since it is larger than the sum of its proper divisors (60997375).

253740545 is a wasteful number, since it uses less digits than its factorization.

253740545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144.

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 253740545 is about 15929.2355434905. The cubic root of 253740545 is about 633.0868451400.

Adding to 253740545 its reverse (545047352), we get a palindrome (798787897).

The spelling of 253740545 in words is "two hundred fifty-three million, seven hundred forty thousand, five hundred forty-five".