249477489552 has 40 divisors (see below), whose sum is σ = 644893947360. Its totient is φ = 83106204160.

The previous prime is 249477489511. The next prime is 249477489559. The reversal of 249477489552 is 255984774942.

It is not an unprimeable number, because it can be changed into a prime (249477489559) 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, 1578777 + ... + 1729592.

It is an arithmetic number, because the mean of its divisors is an integer number (16122348684).

Almost surely, 2^249477489552 is an apocalyptic number.

It is an amenable number.

249477489552 is an abundant number, since it is smaller than the sum of its proper divisors (395416457808).

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

249477489552 is a wasteful number, since it uses less digits than its factorization.

249477489552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309951 (or 3309945 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 66.

The spelling of 249477489552 in words is "two hundred forty-nine billion, four hundred seventy-seven million, four hundred eighty-nine thousand, five hundred fifty-two".