251512762132 has 48 divisors (see below), whose sum is σ = 462289411584. Its totient is φ = 119503692000.

The previous prime is 251512762121. The next prime is 251512762139. The reversal of 251512762132 is 231267215152.

251512762132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 251512762091 and 251512762100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251512762139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11072907 + ... + 11095597.

It is an arithmetic number, because the mean of its divisors is an integer number (9631029408).

Almost surely, 2^251512762132 is an apocalyptic number.

It is an amenable number.

251512762132 is a deficient number, since it is larger than the sum of its proper divisors (210776649452).

251512762132 is a wasteful number, since it uses less digits than its factorization.

251512762132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23500 (or 23498 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

Adding to 251512762132 its reverse (231267215152), we get a palindrome (482779977284).

The spelling of 251512762132 in words is "two hundred fifty-one billion, five hundred twelve million, seven hundred sixty-two thousand, one hundred thirty-two".