1553252123 has 8 divisors (see below), whose sum is σ = 1640314368. Its totient is φ = 1467817384.

The previous prime is 1553252111. The next prime is 1553252131. The reversal of 1553252123 is 3212523551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1553252123 - 2¹⁰ = 1553251099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1553252153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404915 + ... + 408732.

It is an arithmetic number, because the mean of its divisors is an integer number (205039296).

Almost surely, 2^1553252123 is an apocalyptic number.

1553252123 is a deficient number, since it is larger than the sum of its proper divisors (87062245).

1553252123 is an equidigital number, since it uses as much as digits as its factorization.

1553252123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813753.

The product of its digits is 9000, while the sum is 29.

The square root of 1553252123 is about 39411.3197317725. The cubic root of 1553252123 is about 1158.1033519893.

Adding to 1553252123 its reverse (3212523551), we get a palindrome (4765775674).

The spelling of 1553252123 in words is "one billion, five hundred fifty-three million, two hundred fifty-two thousand, one hundred twenty-three".