54625861 has 4 divisors (see below), whose sum is σ = 54643212. Its totient is φ = 54608512.

The previous prime is 54625859. The next prime is 54625871. The reversal of 54625861 is 16852645.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31528225 + 23097636 = 5615^2 + 4806^2 .

It is a cyclic number.

It is not a de Polignac number, because 54625861 - 2¹ = 54625859 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 54625861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54625871) 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, 2476 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (13660803).

Almost surely, 2^54625861 is an apocalyptic number.

It is an amenable number.

54625861 is a deficient number, since it is larger than the sum of its proper divisors (17351).

54625861 is a wasteful number, since it uses less digits than its factorization.

54625861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17350.

The product of its digits is 57600, while the sum is 37.

The square root of 54625861 is about 7390.9309968366. The cubic root of 54625861 is about 379.4309604001.

The spelling of 54625861 in words is "fifty-four million, six hundred twenty-five thousand, eight hundred sixty-one".