157623555 has 16 divisors (see below), whose sum is σ = 260894880. Its totient is φ = 81166848.

The previous prime is 157623553. The next prime is 157623559. The reversal of 157623555 is 555326751.

It is not a de Polignac number, because 157623555 - 2¹ = 157623553 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (157623553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180742 + ... + 181611.

It is an arithmetic number, because the mean of its divisors is an integer number (16305930).

Almost surely, 2^157623555 is an apocalyptic number.

157623555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157623555 is a deficient number, since it is larger than the sum of its proper divisors (103271325).

157623555 is a wasteful number, since it uses less digits than its factorization.

157623555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362390.

The product of its digits is 157500, while the sum is 39.

The square root of 157623555 is about 12554.8219820115. The cubic root of 157623555 is about 540.1823286912.

The spelling of 157623555 in words is "one hundred fifty-seven million, six hundred twenty-three thousand, five hundred fifty-five".