1001402625 has 32 divisors (see below), whose sum is σ = 1723812480. Its totient is φ = 515659200.

The previous prime is 1001402609. The next prime is 1001402639. The reversal of 1001402625 is 5262041001.

It is not a de Polignac number, because 1001402625 - 2⁴ = 1001402609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35167 + ... + 56916.

It is an arithmetic number, because the mean of its divisors is an integer number (53869140).

Almost surely, 2^1001402625 is an apocalyptic number.

1001402625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1001402625 is a deficient number, since it is larger than the sum of its proper divisors (722409855).

1001402625 is an equidigital number, since it uses as much as digits as its factorization.

1001402625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92130 (or 92120 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1001402625 is about 31644.9462789874. The cubic root of 1001402625 is about 1000.4673232416.

Adding to 1001402625 its reverse (5262041001), we get a palindrome (6263443626).

The spelling of 1001402625 in words is "one billion, one million, four hundred two thousand, six hundred twenty-five".