54111625 has 8 divisors (see below), whose sum is σ = 67531464. Its totient is φ = 43289200.

The previous prime is 54111623. The next prime is 54111667. The reversal of 54111625 is 52611145.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9114361 + 44997264 = 3019^2 + 6708^2 .

It is not a de Polignac number, because 54111625 - 2¹ = 54111623 is a prime.

It is a super-3 number, since 3×54111625³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 54111625.

It is not an unprimeable number, because it can be changed into a prime (54111623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216322 + ... + 216571.

It is an arithmetic number, because the mean of its divisors is an integer number (8441433).

Almost surely, 2^54111625 is an apocalyptic number.

It is an amenable number.

54111625 is a deficient number, since it is larger than the sum of its proper divisors (13419839).

54111625 is an equidigital number, since it uses as much as digits as its factorization.

54111625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432908 (or 432898 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 54111625 is about 7356.0604266142. The cubic root of 54111625 is about 378.2365777318.

The spelling of 54111625 in words is "fifty-four million, one hundred eleven thousand, six hundred twenty-five".