1630250520 has 32 divisors (see below), whose sum is σ = 4890751920. Its totient is φ = 434733440.

The previous prime is 1630250441. The next prime is 1630250539. The reversal of 1630250520 is 250520361.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6792591 + ... + 6792830.

Almost surely, 2^1630250520 is an apocalyptic number.

1630250520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630250520 is an abundant number, since it is smaller than the sum of its proper divisors (3260501400).

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

1630250520 is a wasteful number, since it uses less digits than its factorization.

1630250520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13585435 (or 13585431 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1630250520 is about 40376.3609058568. The cubic root of 1630250520 is about 1176.9322112351.

Adding to 1630250520 its reverse (250520361), we get a palindrome (1880770881).

The spelling of 1630250520 in words is "one billion, six hundred thirty million, two hundred fifty thousand, five hundred twenty".