54142065 has 24 divisors (see below), whose sum is σ = 94042728. Its totient is φ = 28815360.

The previous prime is 54142061. The next prime is 54142087. The reversal of 54142065 is 56024145.

It can be written as a sum of positive squares in 4 ways, for example, as 18249984 + 35892081 = 4272^2 + 5991^2 .

It is not a de Polignac number, because 54142065 - 2² = 54142061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54142061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27907 + ... + 29783.

It is an arithmetic number, because the mean of its divisors is an integer number (3918447).

Almost surely, 2^54142065 is an apocalyptic number.

It is an amenable number.

54142065 is a deficient number, since it is larger than the sum of its proper divisors (39900663).

54142065 is a wasteful number, since it uses less digits than its factorization.

54142065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 54142065 is about 7358.1291779908. The cubic root of 54142065 is about 378.3074889464.

The spelling of 54142065 in words is "fifty-four million, one hundred forty-two thousand, sixty-five".