253631012 has 6 divisors (see below), whose sum is σ = 443854278. Its totient is φ = 126815504.

The previous prime is 253631003. The next prime is 253631017. The reversal of 253631012 is 210136352.

It can be written as a sum of positive squares in only one way, i.e., 157904356 + 95726656 = 12566^2 + 9784^2 .

It is not an unprimeable number, because it can be changed into a prime (253631017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31703873 + ... + 31703880.

It is an arithmetic number, because the mean of its divisors is an integer number (73975713).

Almost surely, 2^253631012 is an apocalyptic number.

It is an amenable number.

253631012 is a deficient number, since it is larger than the sum of its proper divisors (190223266).

253631012 is a wasteful number, since it uses less digits than its factorization.

253631012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63407757 (or 63407755 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 253631012 is about 15925.7970601160. The cubic root of 253631012 is about 632.9957364818.

Adding to 253631012 its reverse (210136352), we get a palindrome (463767364).

The spelling of 253631012 in words is "two hundred fifty-three million, six hundred thirty-one thousand, twelve".