42501455 has 8 divisors (see below), whose sum is σ = 51094800. Its totient is φ = 33939136.

The previous prime is 42501421. The next prime is 42501467. The reversal of 42501455 is 55410524.

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 42501455 - 2¹⁰ = 42500431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4625 + ... + 10314.

It is an arithmetic number, because the mean of its divisors is an integer number (6386850).

Almost surely, 2^42501455 is an apocalyptic number.

42501455 is a deficient number, since it is larger than the sum of its proper divisors (8593345).

42501455 is a wasteful number, since it uses less digits than its factorization.

42501455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15513.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 42501455 is about 6519.3139976534. The cubic root of 42501455 is about 348.9805847389.

Adding to 42501455 its reverse (55410524), we get a palindrome (97911979).

The spelling of 42501455 in words is "forty-two million, five hundred one thousand, four hundred fifty-five".