249564793452 has 24 divisors (see below), whose sum is σ = 627111532656. Its totient is φ = 76789167168.

The previous prime is 249564793433. The next prime is 249564793453. The reversal of 249564793452 is 254397465942.

It is a happy number.

It is a super-2 number, since 2×249564793452² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249564793453) 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, 799887003 + ... + 799887314.

It is an arithmetic number, because the mean of its divisors is an integer number (26129647194).

Almost surely, 2^249564793452 is an apocalyptic number.

It is an amenable number.

249564793452 is an abundant number, since it is smaller than the sum of its proper divisors (377546739204).

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

249564793452 is a wasteful number, since it uses less digits than its factorization.

249564793452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599774337 (or 1599774335 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 60.

The spelling of 249564793452 in words is "two hundred forty-nine billion, five hundred sixty-four million, seven hundred ninety-three thousand, four hundred fifty-two".