1552251137 has 4 divisors (see below), whose sum is σ = 1552344000. Its totient is φ = 1552158276.

The previous prime is 1552251131. The next prime is 1552251149. The reversal of 1552251137 is 7311522551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1552251137 - 2⁶ = 1552251073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552251131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13637 + ... + 57362.

It is an arithmetic number, because the mean of its divisors is an integer number (388086000).

Almost surely, 2^1552251137 is an apocalyptic number.

It is an amenable number.

1552251137 is a deficient number, since it is larger than the sum of its proper divisors (92863).

1552251137 is an equidigital number, since it uses as much as digits as its factorization.

1552251137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92862.

The product of its digits is 10500, while the sum is 32.

The square root of 1552251137 is about 39398.6184656264. The cubic root of 1552251137 is about 1157.8545204490.

Adding to 1552251137 its reverse (7311522551), we get a palindrome (8863773688).

The spelling of 1552251137 in words is "one billion, five hundred fifty-two million, two hundred fifty-one thousand, one hundred thirty-seven".