157227553 has 4 divisors (see below), whose sum is σ = 179688640. Its totient is φ = 134766468.

The previous prime is 157227547. The next prime is 157227593. The reversal of 157227553 is 355722751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157227553 is a prime.

It is a super-4 number, since 4×157227553⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157227503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11230533 + ... + 11230546.

It is an arithmetic number, because the mean of its divisors is an integer number (44922160).

Almost surely, 2^157227553 is an apocalyptic number.

It is an amenable number.

157227553 is a deficient number, since it is larger than the sum of its proper divisors (22461087).

157227553 is an equidigital number, since it uses as much as digits as its factorization.

157227553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22461086.

The product of its digits is 73500, while the sum is 37.

The square root of 157227553 is about 12539.0411515395. The cubic root of 157227553 is about 539.7295776772.

The spelling of 157227553 in words is "one hundred fifty-seven million, two hundred twenty-seven thousand, five hundred fifty-three".