71534425 has 6 divisors (see below), whose sum is σ = 88702718. Its totient is φ = 57227520.

The previous prime is 71534399. The next prime is 71534429. The reversal of 71534425 is 52443517.

It can be written as a sum of positive squares in 3 ways, for example, as 233289 + 71301136 = 483^2 + 8444^2 .

It is not a de Polignac number, because 71534425 - 2²¹ = 69437273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71534429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430664 + ... + 1430713.

Almost surely, 2^71534425 is an apocalyptic number.

It is an amenable number.

71534425 is a deficient number, since it is larger than the sum of its proper divisors (17168293).

71534425 is a wasteful number, since it uses less digits than its factorization.

71534425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861387 (or 2861382 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 71534425 is about 8457.8026106076. The cubic root of 71534425 is about 415.1181257580.

The spelling of 71534425 in words is "seventy-one million, five hundred thirty-four thousand, four hundred twenty-five".