42502533 has 16 divisors (see below), whose sum is σ = 61402176. Its totient is φ = 26046720.

The previous prime is 42502513. The next prime is 42502541. The reversal of 42502533 is 33520524.

It is not a de Polignac number, because 42502533 - 2⁵ = 42502501 is a prime.

It is a super-2 number, since 2×42502533² = 3612930622832178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42502513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7498 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (3837636).

Almost surely, 2^42502533 is an apocalyptic number.

42502533 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42502533 is a deficient number, since it is larger than the sum of its proper divisors (18899643).

42502533 is a wasteful number, since it uses less digits than its factorization.

42502533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 42502533 is about 6519.3966745398. The cubic root of 42502533 is about 348.9835352095.

Subtracting from 42502533 its reverse (33520524), we obtain a square (8982009 = 2997²).

The spelling of 42502533 in words is "forty-two million, five hundred two thousand, five hundred thirty-three".