152556623 has 4 divisors (see below), whose sum is σ = 161530560. Its totient is φ = 143582688.

The previous prime is 152556601. The next prime is 152556637. The reversal of 152556623 is 326655251.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152556623 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 (152556683) 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, 4486943 + ... + 4486976.

It is an arithmetic number, because the mean of its divisors is an integer number (40382640).

Almost surely, 2^152556623 is an apocalyptic number.

152556623 is a deficient number, since it is larger than the sum of its proper divisors (8973937).

152556623 is an equidigital number, since it uses as much as digits as its factorization.

152556623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973936.

The product of its digits is 54000, while the sum is 35.

The square root of 152556623 is about 12351.3814207157. The cubic root of 152556623 is about 534.3309807817.

The spelling of 152556623 in words is "one hundred fifty-two million, five hundred fifty-six thousand, six hundred twenty-three".