42048251 has 4 divisors (see below), whose sum is σ = 48055152. Its totient is φ = 36041352.

The previous prime is 42048241. The next prime is 42048257. The reversal of 42048251 is 15284024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42048251 - 2⁶ = 42048187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42048251.

It is not an unprimeable number, because it can be changed into a prime (42048257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003440 + ... + 3003453.

It is an arithmetic number, because the mean of its divisors is an integer number (12013788).

Almost surely, 2^42048251 is an apocalyptic number.

42048251 is a deficient number, since it is larger than the sum of its proper divisors (6006901).

42048251 is an equidigital number, since it uses as much as digits as its factorization.

42048251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006900.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 42048251 is about 6484.4622753163. The cubic root of 42048251 is about 347.7357260557.

The spelling of 42048251 in words is "forty-two million, forty-eight thousand, two hundred fifty-one".