249487922553 has 8 divisors (see below), whose sum is σ = 332745161088. Its totient is φ = 166277982864.

The previous prime is 249487922549. The next prime is 249487922561. The reversal of 249487922553 is 355229784942.

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

It is not a de Polignac number, because 249487922553 - 2² = 249487922549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249487922503) 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, 11812401 + ... + 11833502.

It is an arithmetic number, because the mean of its divisors is an integer number (41593145136).

Almost surely, 2^249487922553 is an apocalyptic number.

It is an amenable number.

249487922553 is a deficient number, since it is larger than the sum of its proper divisors (83257238535).

249487922553 is a wasteful number, since it uses less digits than its factorization.

249487922553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23649423.

The product of its digits is 43545600, while the sum is 60.

The spelling of 249487922553 in words is "two hundred forty-nine billion, four hundred eighty-seven million, nine hundred twenty-two thousand, five hundred fifty-three".