249388000052 has 48 divisors (see below), whose sum is σ = 489389765760. Its totient is φ = 110580974592.

The previous prime is 249388000051. The next prime is 249388000139. The reversal of 249388000052 is 250000883942.

It is a junction number, because it is equal to n+sod(n) for n = 249387999973 and 249388000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249388000051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085177 + ... + 1294752.

It is an arithmetic number, because the mean of its divisors is an integer number (10195620120).

Almost surely, 2^249388000052 is an apocalyptic number.

It is an amenable number.

249388000052 is a deficient number, since it is larger than the sum of its proper divisors (240001765708).

249388000052 is a wasteful number, since it uses less digits than its factorization.

249388000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380040 (or 2380038 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

Adding to 249388000052 its reverse (250000883942), we get a palindrome (499388883994).

The spelling of 249388000052 in words is "two hundred forty-nine billion, three hundred eighty-eight million, fifty-two", and thus it is an aban number.