1000251552 has 48 divisors (see below), whose sum is σ = 2686733280. Its totient is φ = 325661952.

The previous prime is 1000251533. The next prime is 1000251601. The reversal of 1000251552 is 2551520001.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117027 + ... + 125282.

It is an arithmetic number, because the mean of its divisors is an integer number (55973610).

Almost surely, 2^1000251552 is an apocalyptic number.

1000251552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000251552 is an abundant number, since it is smaller than the sum of its proper divisors (1686481728).

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

1000251552 is a wasteful number, since it uses less digits than its factorization.

1000251552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242365 (or 242357 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1000251552 is about 31626.7537379352. The cubic root of 1000251552 is about 1000.0838436367.

Adding to 1000251552 its reverse (2551520001), we get a palindrome (3551771553).

The spelling of 1000251552 in words is "one billion, two hundred fifty-one thousand, five hundred fifty-two".