54120025 has 6 divisors (see below), whose sum is σ = 67108862. Its totient is φ = 43296000.

The previous prime is 54120019. The next prime is 54120029. The reversal of 54120025 is 52002145.

It can be written as a sum of positive squares in 3 ways, for example, as 68121 + 54051904 = 261^2 + 7352^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54120025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54119984 and 54120011.

It is not an unprimeable number, because it can be changed into a prime (54120029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1082376 + ... + 1082425.

Almost surely, 2^54120025 is an apocalyptic number.

It is an amenable number.

54120025 is a deficient number, since it is larger than the sum of its proper divisors (12988837).

54120025 is a wasteful number, since it uses less digits than its factorization.

54120025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164811 (or 2164806 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 54120025 is about 7356.6313622473. The cubic root of 54120025 is about 378.2561485287.

The spelling of 54120025 in words is "fifty-four million, one hundred twenty thousand, twenty-five".