42052451 has 8 divisors (see below), whose sum is σ = 49082880. Its totient is φ = 35277768.

The previous prime is 42052447. The next prime is 42052457. The reversal of 42052451 is 15425024.

It is a happy number.

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 42052451 - 2² = 42052447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42052457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63581 + ... + 64238.

It is an arithmetic number, because the mean of its divisors is an integer number (6135360).

Almost surely, 2^42052451 is an apocalyptic number.

42052451 is a deficient number, since it is larger than the sum of its proper divisors (7030429).

42052451 is a wasteful number, since it uses less digits than its factorization.

42052451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127873.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42052451 is about 6484.7861182926. The cubic root of 42052451 is about 347.7473035600.

Adding to 42052451 its reverse (15425024), we get a palindrome (57477475).

The spelling of 42052451 in words is "forty-two million, fifty-two thousand, four hundred fifty-one".