1552551140423 has 4 divisors (see below), whose sum is σ = 1634264358360. Its totient is φ = 1470837922488.

The previous prime is 1552551140417. The next prime is 1552551140449. The reversal of 1552551140423 is 3240411552551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1552551140423 - 2¹⁸ = 1552550878279 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 (1552551140473) 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, 40856608940 + ... + 40856608977.

It is an arithmetic number, because the mean of its divisors is an integer number (408566089590).

Almost surely, 2^{1552551140423} is an apocalyptic number.

1552551140423 is a deficient number, since it is larger than the sum of its proper divisors (81713217937).

1552551140423 is an equidigital number, since it uses as much as digits as its factorization.

1552551140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81713217936.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 1552551140423 its reverse (3240411552551), we get a palindrome (4792962692974).

The spelling of 1552551140423 in words is "one trillion, five hundred fifty-two billion, five hundred fifty-one million, one hundred forty thousand, four hundred twenty-three".