65542457 has 4 divisors (see below), whose sum is σ = 68992080. Its totient is φ = 62092836.

The previous prime is 65542447. The next prime is 65542471. The reversal of 65542457 is 75424556.

65542457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65542457 - 2¹⁶ = 65476921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65542457.

It is not an unprimeable number, because it can be changed into a prime (65542417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724783 + ... + 1724820.

It is an arithmetic number, because the mean of its divisors is an integer number (17248020).

Almost surely, 2^65542457 is an apocalyptic number.

It is an amenable number.

65542457 is a deficient number, since it is larger than the sum of its proper divisors (3449623).

65542457 is a wasteful number, since it uses less digits than its factorization.

65542457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449622.

The product of its digits is 168000, while the sum is 38.

The square root of 65542457 is about 8095.8296054203. The cubic root of 65542457 is about 403.1879765963.

The spelling of 65542457 in words is "sixty-five million, five hundred forty-two thousand, four hundred fifty-seven".