1025100630 has 128 divisors (see below), whose sum is σ = 2794176000. Its totient is φ = 267380352.

The previous prime is 1025100563. The next prime is 1025100683. The reversal of 1025100630 is 360015201.

1025100630 is a `hidden beast` number, since 1 + 0 + 25 + 10 + 0 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 63 ways as a sum of consecutive naturals, for example, 3338937 + ... + 3339243.

It is an arithmetic number, because the mean of its divisors is an integer number (21829500).

Almost surely, 2^1025100630 is an apocalyptic number.

1025100630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025100630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397088000).

1025100630 is an abundant number, since it is smaller than the sum of its proper divisors (1769075370).

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

1025100630 is a wasteful number, since it uses less digits than its factorization.

1025100630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1025100630 is about 32017.1927251594. The cubic root of 1025100630 is about 1008.2978322011.

Adding to 1025100630 its reverse (360015201), we get a palindrome (1385115831).

The spelling of 1025100630 in words is "one billion, twenty-five million, one hundred thousand, six hundred thirty".