42051525 has 48 divisors (see below), whose sum is σ = 72316800. Its totient is φ = 21548800.

The previous prime is 42051517. The next prime is 42051533. The reversal of 42051525 is 52515024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42051517) and next prime (42051533).

It is not a de Polignac number, because 42051525 - 2³ = 42051517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42051495 and 42051504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282151 + ... + 282299.

It is an arithmetic number, because the mean of its divisors is an integer number (1506600).

Almost surely, 2^42051525 is an apocalyptic number.

It is an amenable number.

42051525 is a deficient number, since it is larger than the sum of its proper divisors (30265275).

42051525 is a wasteful number, since it uses less digits than its factorization.

42051525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 42051525 is about 6484.7147200166. The cubic root of 42051525 is about 347.7447510622.

Adding to 42051525 its reverse (52515024), we get a palindrome (94566549).

The spelling of 42051525 in words is "forty-two million, fifty-one thousand, five hundred twenty-five".