253525442 has 8 divisors (see below), whose sum is σ = 381949500. Its totient is φ = 126208944.

The previous prime is 253525439. The next prime is 253525469. The reversal of 253525442 is 244525352.

253525442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 217297081 + 36228361 = 14741^2 + 6019^2 .

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

It is a super-3 number, since 3×253525442³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253525399 and 253525408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276317 + ... + 277232.

Almost surely, 2^253525442 is an apocalyptic number.

253525442 is a deficient number, since it is larger than the sum of its proper divisors (128424058).

253525442 is a wasteful number, since it uses less digits than its factorization.

253525442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553780.

The product of its digits is 48000, while the sum is 32.

The square root of 253525442 is about 15922.4822813530. The cubic root of 253525442 is about 632.9078993870.

The spelling of 253525442 in words is "two hundred fifty-three million, five hundred twenty-five thousand, four hundred forty-two".