1630250501 has 4 divisors (see below), whose sum is σ = 1778455104. Its totient is φ = 1482045900.

The previous prime is 1630250441. The next prime is 1630250539. The reversal of 1630250501 is 1050520361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1630250501 - 2¹⁰ = 1630249477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630250201) 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 in 3 ways as a sum of consecutive naturals, for example, 74102285 + ... + 74102306.

It is an arithmetic number, because the mean of its divisors is an integer number (444613776).

Almost surely, 2^1630250501 is an apocalyptic number.

1630250501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1630250501 is a deficient number, since it is larger than the sum of its proper divisors (148204603).

1630250501 is a wasteful number, since it uses less digits than its factorization.

1630250501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148204602.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1630250501 is about 40376.3606705706. The cubic root of 1630250501 is about 1176.9322066628.

Adding to 1630250501 its reverse (1050520361), we get a palindrome (2680770862).

The spelling of 1630250501 in words is "one billion, six hundred thirty million, two hundred fifty thousand, five hundred one".