42527451 has 4 divisors (see below), whose sum is σ = 56703272. Its totient is φ = 28351632.

The previous prime is 42527449. The next prime is 42527461. The reversal of 42527451 is 15472524.

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

It is not a de Polignac number, because 42527451 - 2¹ = 42527449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42527461) 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, 7087906 + ... + 7087911.

It is an arithmetic number, because the mean of its divisors is an integer number (14175818).

Almost surely, 2^42527451 is an apocalyptic number.

42527451 is a deficient number, since it is larger than the sum of its proper divisors (14175821).

42527451 is a wasteful number, since it uses less digits than its factorization.

42527451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14175820.

The product of its digits is 11200, while the sum is 30.

The square root of 42527451 is about 6521.3074609314. The cubic root of 42527451 is about 349.0517215212.

Adding to 42527451 its reverse (15472524), we get a palindrome (57999975).

The spelling of 42527451 in words is "forty-two million, five hundred twenty-seven thousand, four hundred fifty-one".