71425011 has 16 divisors (see below), whose sum is σ = 109625600. Its totient is φ = 40519008.

The previous prime is 71425001. The next prime is 71425027. The reversal of 71425011 is 11052417.

It is a happy number.

It is not a de Polignac number, because 71425011 - 2¹³ = 71416819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71425001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9316 + ... + 15153.

It is an arithmetic number, because the mean of its divisors is an integer number (6851600).

Almost surely, 2^71425011 is an apocalyptic number.

71425011 is a deficient number, since it is larger than the sum of its proper divisors (38200589).

71425011 is a wasteful number, since it uses less digits than its factorization.

71425011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24618.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 71425011 is about 8451.3319068653. The cubic root of 71425011 is about 414.9063726463.

Adding to 71425011 its reverse (11052417), we get a palindrome (82477428).

The spelling of 71425011 in words is "seventy-one million, four hundred twenty-five thousand, eleven".