253061004 has 48 divisors (see below), whose sum is σ = 679392000. Its totient is φ = 71814336.

The previous prime is 253060993. The next prime is 253061027. The reversal of 253061004 is 400160352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2407 + ... + 22625.

It is an arithmetic number, because the mean of its divisors is an integer number (14154000).

Almost surely, 2^253061004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253061004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339696000).

253061004 is an abundant number, since it is smaller than the sum of its proper divisors (426330996).

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

253061004 is a wasteful number, since it uses less digits than its factorization.

253061004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20382 (or 20380 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 253061004 is about 15907.8912493140. The cubic root of 253061004 is about 632.5211845404.

The spelling of 253061004 in words is "two hundred fifty-three million, sixty-one thousand, four".