254253540 has 24 divisors (see below), whose sum is σ = 711910080. Its totient is φ = 67800928.

The previous prime is 254253533. The next prime is 254253557. The reversal of 254253540 is 45352452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 254253498 and 254253507.

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, 2118720 + ... + 2118839.

It is an arithmetic number, because the mean of its divisors is an integer number (29662920).

Almost surely, 2^254253540 is an apocalyptic number.

254253540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254253540 is an abundant number, since it is smaller than the sum of its proper divisors (457656540).

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

254253540 is a wasteful number, since it uses less digits than its factorization.

254253540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237571 (or 4237569 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 254253540 is about 15945.3297237781. The cubic root of 254253540 is about 633.5132016053.

The spelling of 254253540 in words is "two hundred fifty-four million, two hundred fifty-three thousand, five hundred forty".