42523153 has 4 divisors (see below), whose sum is σ = 42565120. Its totient is φ = 42481188.

The previous prime is 42523147. The next prime is 42523177. The reversal of 42523153 is 35132524.

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 not a de Polignac number, because 42523153 - 2²⁵ = 8968721 is a prime.

It is a super-2 number, since 2×42523153² = 3616437082122818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42523123) 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, 19425 + ... + 21502.

It is an arithmetic number, because the mean of its divisors is an integer number (10641280).

Almost surely, 2^42523153 is an apocalyptic number.

It is an amenable number.

42523153 is a deficient number, since it is larger than the sum of its proper divisors (41967).

42523153 is a wasteful number, since it uses less digits than its factorization.

42523153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41966.

The product of its digits is 3600, while the sum is 25.

The square root of 42523153 is about 6520.9779174599. The cubic root of 42523153 is about 349.0399622551.

Adding to 42523153 its reverse (35132524), we get a palindrome (77655677).

The spelling of 42523153 in words is "forty-two million, five hundred twenty-three thousand, one hundred fifty-three".