253504545 has 32 divisors (see below), whose sum is σ = 469915392. Its totient is φ = 114296832.

The previous prime is 253504541. The next prime is 253504547. The reversal of 253504545 is 545405352.

It is not a de Polignac number, because 253504545 - 2² = 253504541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253504541) 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, 8872 + ... + 24201.

It is an arithmetic number, because the mean of its divisors is an integer number (14684856).

Almost surely, 2^253504545 is an apocalyptic number.

It is an amenable number.

253504545 is a deficient number, since it is larger than the sum of its proper divisors (216410847).

253504545 is a wasteful number, since it uses less digits than its factorization.

253504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33161.

The product of its (nonzero) digits is 60000, while the sum is 33.

The square root of 253504545 is about 15921.8260573340. The cubic root of 253504545 is about 632.8905096270.

Adding to 253504545 its reverse (545405352), we get a palindrome (798909897).

The spelling of 253504545 in words is "two hundred fifty-three million, five hundred four thousand, five hundred forty-five".