630136254550 has 48 divisors (see below), whose sum is σ = 1278959360112. Its totient is φ = 229076726400.

The previous prime is 630136254547. The next prime is 630136254577. The reversal of 630136254550 is 55452631036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1842844 + ... + 2157856.

It is an arithmetic number, because the mean of its divisors is an integer number (26644986669).

Almost surely, 2^630136254550 is an apocalyptic number.

630136254550 is an abundant number, since it is smaller than the sum of its proper divisors (648823105562).

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

630136254550 is a wasteful number, since it uses less digits than its factorization.

630136254550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318673 (or 318668 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 630136254550 its reverse (55452631036), we get a palindrome (685588885586).

The spelling of 630136254550 in words is "six hundred thirty billion, one hundred thirty-six million, two hundred fifty-four thousand, five hundred fifty".