42512455 has 8 divisors (see below), whose sum is σ = 51382800. Its totient is φ = 33764736.

The previous prime is 42512447. The next prime is 42512467. The reversal of 42512455 is 55421524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42512455 - 2³ = 42512447 is a prime.

It is a super-3 number, since 3×42512455³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29890 + ... + 31279.

It is an arithmetic number, because the mean of its divisors is an integer number (6422850).

Almost surely, 2^42512455 is an apocalyptic number.

42512455 is a deficient number, since it is larger than the sum of its proper divisors (8870345).

42512455 is a wasteful number, since it uses less digits than its factorization.

42512455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61313.

The product of its digits is 8000, while the sum is 28.

The square root of 42512455 is about 6520.1575901200. The cubic root of 42512455 is about 349.0106892400.

Adding to 42512455 its reverse (55421524), we get a palindrome (97933979).

It can be divided in two parts, 425 and 12455, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 42512455 in words is "forty-two million, five hundred twelve thousand, four hundred fifty-five".