1552423001 has 4 divisors (see below), whose sum is σ = 1552856292. Its totient is φ = 1551989712.

The previous prime is 1552422961. The next prime is 1552423021. The reversal of 1552423001 is 1003242551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1003242551 = 317 ⋅3164803.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 1551966025 = 676^2 + 39395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552423001 is a prime.

It is a super-3 number, since 3×1552423001³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552423021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211226 + ... + 218451.

It is an arithmetic number, because the mean of its divisors is an integer number (388214073).

Almost surely, 2^1552423001 is an apocalyptic number.

It is an amenable number.

1552423001 is a deficient number, since it is larger than the sum of its proper divisors (433291).

1552423001 is an equidigital number, since it uses as much as digits as its factorization.

1552423001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433290.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1552423001 is about 39400.7994969645. The cubic root of 1552423001 is about 1157.8972511131.

Adding to 1552423001 its reverse (1003242551), we get a palindrome (2555665552).

The spelling of 1552423001 in words is "one billion, five hundred fifty-two million, four hundred twenty-three thousand, one".