64542955 has 8 divisors (see below), whose sum is σ = 77647104. Its totient is φ = 51504000.

The previous prime is 64542937. The next prime is 64542977. The reversal of 64542955 is 55924546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64542955 - 2¹¹ = 64540907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14091 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (9705888).

Almost surely, 2^64542955 is an apocalyptic number.

64542955 is a deficient number, since it is larger than the sum of its proper divisors (13104149).

64542955 is a wasteful number, since it uses less digits than its factorization.

64542955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32597.

The product of its digits is 216000, while the sum is 40.

The square root of 64542955 is about 8033.8630184986. The cubic root of 64542955 is about 401.1279724555.

It can be divided in two parts, 6454 and 2955, that added together give a square (9409 = 97²).

The spelling of 64542955 in words is "sixty-four million, five hundred forty-two thousand, nine hundred fifty-five".