1552228077 has 4 divisors (see below), whose sum is σ = 2069637440. Its totient is φ = 1034818716.

The previous prime is 1552228049. The next prime is 1552228079. The reversal of 1552228077 is 7708222551.

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 an emirpimes, since its reverse is a distinct semiprime: 7708222551 = 3 ⋅2569407517.

It is not a de Polignac number, because 1552228077 - 2⁷ = 1552227949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552228079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258704677 + ... + 258704682.

It is an arithmetic number, because the mean of its divisors is an integer number (517409360).

Almost surely, 2^1552228077 is an apocalyptic number.

It is an amenable number.

1552228077 is a deficient number, since it is larger than the sum of its proper divisors (517409363).

1552228077 is an equidigital number, since it uses as much as digits as its factorization.

1552228077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517409362.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 1552228077 is about 39398.3258146841. The cubic root of 1552228077 is about 1157.8487867855.

The spelling of 1552228077 in words is "one billion, five hundred fifty-two million, two hundred twenty-eight thousand, seventy-seven".