1552253121 has 6 divisors (see below), whose sum is σ = 2242143410. Its totient is φ = 1034835408.

The previous prime is 1552253117. The next prime is 1552253123. The reversal of 1552253121 is 1213522551.

1552253121 is a `hidden beast` number, since 15 + 522 + 5 + 3 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1112889600 + 439363521 = 33360^2 + 20961^2 .

It is not a de Polignac number, because 1552253121 - 2² = 1552253117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552253123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86236276 + ... + 86236293.

Almost surely, 2^1552253121 is an apocalyptic number.

It is an amenable number.

1552253121 is a deficient number, since it is larger than the sum of its proper divisors (689890289).

1552253121 is a wasteful number, since it uses less digits than its factorization.

1552253121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172472575 (or 172472572 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1552253121 is about 39398.6436441662. The cubic root of 1552253121 is about 1157.8550137503.

Adding to 1552253121 its reverse (1213522551), we get a palindrome (2765775672).

The spelling of 1552253121 in words is "one billion, five hundred fifty-two million, two hundred fifty-three thousand, one hundred twenty-one".