253040526 has 48 divisors (see below), whose sum is σ = 575561376. Its totient is φ = 80190528.

The previous prime is 253040483. The next prime is 253040539. The reversal of 253040526 is 625040352.

253040526 is a `hidden beast` number, since 253 + 0 + 405 + 2 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253040526.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69856 + ... + 73388.

It is an arithmetic number, because the mean of its divisors is an integer number (11990862).

Almost surely, 2^253040526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253040526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287780688).

253040526 is an abundant number, since it is smaller than the sum of its proper divisors (322520850).

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

253040526 is a wasteful number, since it uses less digits than its factorization.

253040526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 253040526 is about 15907.2475934713. The cubic root of 253040526 is about 632.5041226225.

Adding to 253040526 its reverse (625040352), we get a palindrome (878080878).

The spelling of 253040526 in words is "two hundred fifty-three million, forty thousand, five hundred twenty-six".