1251008552 has 8 divisors (see below), whose sum is σ = 2345641050. Its totient is φ = 625504272.

The previous prime is 1251008543. The next prime is 1251008579. The reversal of 1251008552 is 2558001521.

It can be written as a sum of positive squares in only one way, i.e., 1160492356 + 90516196 = 34066^2 + 9514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78188027 + ... + 78188042.

Almost surely, 2^1251008552 is an apocalyptic number.

It is an amenable number.

1251008552 is a deficient number, since it is larger than the sum of its proper divisors (1094632498).

1251008552 is a wasteful number, since it uses less digits than its factorization.

1251008552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156376075 (or 156376071 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 1251008552 is about 35369.5992626436. The cubic root of 1251008552 is about 1077.5069817217.

The spelling of 1251008552 in words is "one billion, two hundred fifty-one million, eight thousand, five hundred fifty-two".