23550157 has 4 divisors (see below), whose sum is σ = 23700316. Its totient is φ = 23400000.

The previous prime is 23550133. The next prime is 23550169. The reversal of 23550157 is 75105532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7502121 + 16048036 = 2739^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 23550157 - 2⁷ = 23550029 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 (23550127) 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, 74844 + ... + 75157.

It is an arithmetic number, because the mean of its divisors is an integer number (5925079).

Almost surely, 2^23550157 is an apocalyptic number.

It is an amenable number.

23550157 is a deficient number, since it is larger than the sum of its proper divisors (150159).

23550157 is a wasteful number, since it uses less digits than its factorization.

23550157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150158.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 23550157 is about 4852.8503995075. The cubic root of 23550157 is about 286.6363526325.

Adding to 23550157 its reverse (75105532), we get a palindrome (98655689).

The spelling of 23550157 in words is "twenty-three million, five hundred fifty thousand, one hundred fifty-seven".