54155020440025 has 6 divisors (see below), whose sum is σ = 67152225345662. Its totient is φ = 43324016352000.

The previous prime is 54155020440019. The next prime is 54155020440029. The reversal of 54155020440025 is 52004402055145.

It can be written as a sum of positive squares in 3 ways, for example, as 5746852864 + 54149273587161 = 75808^2 + 7358619^2 .

It is not a de Polignac number, because 54155020440025 - 2²⁹ = 54154483569113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54155020440029) 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, 1083100408776 + ... + 1083100408825.

Almost surely, 2^{54155020440025} is an apocalyptic number.

It is an amenable number.

54155020440025 is a deficient number, since it is larger than the sum of its proper divisors (12997204905637).

54155020440025 is a wasteful number, since it uses less digits than its factorization.

54155020440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166200817611 (or 2166200817606 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 54155020440025 in words is "fifty-four trillion, one hundred fifty-five billion, twenty million, four hundred forty thousand, twenty-five".