1442525047 has 4 divisors (see below), whose sum is σ = 1492267320. Its totient is φ = 1392782776.

The previous prime is 1442525027. The next prime is 1442525053. The reversal of 1442525047 is 7405252441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442525047 is a prime.

It is a super-2 number, since 2×1442525047² = 4161757022444704418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442525027) 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, 24871093 + ... + 24871150.

It is an arithmetic number, because the mean of its divisors is an integer number (373066830).

Almost surely, 2^1442525047 is an apocalyptic number.

1442525047 is a deficient number, since it is larger than the sum of its proper divisors (49742273).

1442525047 is an equidigital number, since it uses as much as digits as its factorization.

1442525047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49742272.

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 1442525047 is about 37980.5877653309. The cubic root of 1442525047 is about 1129.9028937360.

Adding to 1442525047 its reverse (7405252441), we get a palindrome (8847777488).

The spelling of 1442525047 in words is "one billion, four hundred forty-two million, five hundred twenty-five thousand, forty-seven".