65523437 has 12 divisors (see below), whose sum is σ = 77144256. Its totient is φ = 55482840.

The previous prime is 65523433. The next prime is 65523461. The reversal of 65523437 is 73432556.

It is not a de Polignac number, because 65523437 - 2² = 65523433 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65523397 and 65523406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65523433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3989 + ... + 12122.

It is an arithmetic number, because the mean of its divisors is an integer number (6428688).

Almost surely, 2^65523437 is an apocalyptic number.

It is an amenable number.

65523437 is a deficient number, since it is larger than the sum of its proper divisors (11620819).

65523437 is a wasteful number, since it uses less digits than its factorization.

65523437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16208 (or 16201 counting only the distinct ones).

The product of its digits is 75600, while the sum is 35.

The square root of 65523437 is about 8094.6548413135. The cubic root of 65523437 is about 403.1489719695.

The spelling of 65523437 in words is "sixty-five million, five hundred twenty-three thousand, four hundred thirty-seven".