42523152 has 80 divisors (see below), whose sum is σ = 126277632. Its totient is φ = 12078720.

The previous prime is 42523147. The next prime is 42523177. The reversal of 42523152 is 25132524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90823 + ... + 91289.

Almost surely, 2^42523152 is an apocalyptic number.

42523152 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42523152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63138816).

42523152 is an abundant number, since it is smaller than the sum of its proper divisors (83754480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42523152 is a wasteful number, since it uses less digits than its factorization.

42523152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 750 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 42523152 is about 6520.9778407843. The cubic root of 42523152 is about 349.0399595190.

Adding to 42523152 its reverse (25132524), we get a palindrome (67655676).

The spelling of 42523152 in words is "forty-two million, five hundred twenty-three thousand, one hundred fifty-two".