65425627537 has 2 divisors, whose sum is σ = 65425627538. Its totient is φ = 65425627536.

The previous prime is 65425627517. The next prime is 65425627543. The reversal of 65425627537 is 73572652456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63193915456 + 2231712081 = 251384^2 + 47241^2 .

It is a cyclic number.

It is not a de Polignac number, because 65425627537 - 2¹⁵ = 65425594769 is a prime.

It is a super-2 number, since 2×65425627537² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65425627507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712813768 + 32712813769.

It is an arithmetic number, because the mean of its divisors is an integer number (32712813769).

Almost surely, 2^65425627537 is an apocalyptic number.

It is an amenable number.

65425627537 is a deficient number, since it is larger than the sum of its proper divisors (1).

65425627537 is an equidigital number, since it uses as much as digits as its factorization.

65425627537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584000, while the sum is 52.

The spelling of 65425627537 in words is "sixty-five billion, four hundred twenty-five million, six hundred twenty-seven thousand, five hundred thirty-seven".