54651567 has 4 divisors (see below), whose sum is σ = 72868760. Its totient is φ = 36434376.

The previous prime is 54651563. The next prime is 54651577. The reversal of 54651567 is 76515645.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 54651567 - 2² = 54651563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54651563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9108592 + ... + 9108597.

It is an arithmetic number, because the mean of its divisors is an integer number (18217190).

Almost surely, 2^54651567 is an apocalyptic number.

54651567 is a deficient number, since it is larger than the sum of its proper divisors (18217193).

54651567 is a wasteful number, since it uses less digits than its factorization.

54651567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18217192.

The product of its digits is 126000, while the sum is 39.

The square root of 54651567 is about 7392.6698154320. The cubic root of 54651567 is about 379.4904689828.

The spelling of 54651567 in words is "fifty-four million, six hundred fifty-one thousand, five hundred sixty-seven".