253205077460 has 24 divisors (see below), whose sum is σ = 531886601736. Its totient is φ = 101252328320.

The previous prime is 253205077459. The next prime is 253205077481. The reversal of 253205077460 is 64770502352.

It can be written as a sum of positive squares in 4 ways, for example, as 116469308176 + 136735769284 = 341276^2 + 369778^2 .

It is a super-2 number, since 2×253205077460² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786451 + ... + 1922970.

It is an arithmetic number, because the mean of its divisors is an integer number (22161941739).

Almost surely, 2^253205077460 is an apocalyptic number.

253205077460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253205077460 is an abundant number, since it is smaller than the sum of its proper divisors (278681524276).

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

253205077460 is a wasteful number, since it uses less digits than its factorization.

253205077460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712843 (or 3712841 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 253205077460 in words is "two hundred fifty-three billion, two hundred five million, seventy-seven thousand, four hundred sixty".