27542951325 has 18 divisors (see below), whose sum is σ = 49332486554. Its totient is φ = 14689573920.

The previous prime is 27542951309. The next prime is 27542951333. The reversal of 27542951325 is 52315924572.

27542951325 is a `hidden beast` number, since 2 + 7 + 542 + 95 + 13 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 197037369 + 27345913956 = 14037^2 + 165366^2 .

It is not a de Polignac number, because 27542951325 - 2⁴ = 27542951309 is a prime.

It is a super-2 number, since 2×27542951325² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61206334 + ... + 61206783.

Almost surely, 2^27542951325 is an apocalyptic number.

27542951325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27542951325 is a deficient number, since it is larger than the sum of its proper divisors (21789535229).

27542951325 is a wasteful number, since it uses less digits than its factorization.

27542951325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122413133 (or 122413125 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 27542951325 in words is "twenty-seven billion, five hundred forty-two million, nine hundred fifty-one thousand, three hundred twenty-five".