1551001552 has 10 divisors (see below), whose sum is σ = 3005065538. Its totient is φ = 775500768.

The previous prime is 1551001453. The next prime is 1551001583. The reversal of 1551001552 is 2551001551.

It can be written as a sum of positive squares in only one way, i.e., 1422496656 + 128504896 = 37716^2 + 11336^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48468783 + ... + 48468814.

Almost surely, 2^1551001552 is an apocalyptic number.

It is an amenable number.

1551001552 is a deficient number, since it is larger than the sum of its proper divisors (1454063986).

1551001552 is an equidigital number, since it uses as much as digits as its factorization.

1551001552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96937605 (or 96937599 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 1551001552 is about 39382.7570390901. The cubic root of 1551001552 is about 1157.5437403993.

Subtracting 1551001552 from its reverse (2551001551), we obtain a palindrome (999999999).

The spelling of 1551001552 in words is "one billion, five hundred fifty-one million, one thousand, five hundred fifty-two".