253005078 has 16 divisors (see below), whose sum is σ = 506375856. Its totient is φ = 84274080.

The previous prime is 253005073. The next prime is 253005091. The reversal of 253005078 is 870500352.

It is a happy number.

It is a super-3 number, since 3×253005078³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253005073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5793 + ... + 23228.

It is an arithmetic number, because the mean of its divisors is an integer number (31648491).

Almost surely, 2^253005078 is an apocalyptic number.

253005078 is an abundant number, since it is smaller than the sum of its proper divisors (253370778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253005078 is a wasteful number, since it uses less digits than its factorization.

253005078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30479.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 253005078 is about 15906.1333453483. The cubic root of 253005078 is about 632.4745857818.

The spelling of 253005078 in words is "two hundred fifty-three million, five thousand, seventy-eight".