253488417 has 24 divisors (see below), whose sum is σ = 423412416. Its totient is φ = 133707168.

The previous prime is 253488407. The next prime is 253488421. The reversal of 253488417 is 714884352.

It is not a de Polignac number, because 253488417 - 2⁴ = 253488401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253488407) 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, 64413 + ... + 68234.

It is an arithmetic number, because the mean of its divisors is an integer number (17642184).

Almost surely, 2^253488417 is an apocalyptic number.

It is an amenable number.

253488417 is a deficient number, since it is larger than the sum of its proper divisors (169923999).

253488417 is a wasteful number, since it uses less digits than its factorization.

253488417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132677 (or 132670 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 253488417 is about 15921.3195747086. The cubic root of 253488417 is about 632.8770878103.

It can be divided in two parts, 2534 and 88417, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 253488417 in words is "two hundred fifty-three million, four hundred eighty-eight thousand, four hundred seventeen".