249285553 has 8 divisors (see below), whose sum is σ = 277079616. Its totient is φ = 222346800.

The previous prime is 249285551. The next prime is 249285557. The reversal of 249285553 is 355582942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249285553 - 2¹ = 249285551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249285551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213213 + ... + 214378.

It is an arithmetic number, because the mean of its divisors is an integer number (34634952).

Almost surely, 2^249285553 is an apocalyptic number.

It is an amenable number.

249285553 is a deficient number, since it is larger than the sum of its proper divisors (27794063).

249285553 is a wasteful number, since it uses less digits than its factorization.

249285553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427655.

The product of its digits is 432000, while the sum is 43.

The square root of 249285553 is about 15788.7793385049. The cubic root of 249285553 is about 629.3598545111.

The spelling of 249285553 in words is "two hundred forty-nine million, two hundred eighty-five thousand, five hundred fifty-three".