25528055377 has 8 divisors (see below), whose sum is σ = 28528026912. Its totient is φ = 22641290400.

The previous prime is 25528055299. The next prime is 25528055383. The reversal of 25528055377 is 77355082552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25528055377 - 2¹⁹ = 25527531089 is a prime.

It is a super-2 number, since 2×25528055377² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25528055377.

It is not an unprimeable number, because it can be changed into a prime (25528055177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28301163 + ... + 28302064.

It is an arithmetic number, because the mean of its divisors is an integer number (3566003364).

Almost surely, 2^25528055377 is an apocalyptic number.

It is an amenable number.

25528055377 is a deficient number, since it is larger than the sum of its proper divisors (2999971535).

25528055377 is a wasteful number, since it uses less digits than its factorization.

25528055377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56603279.

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 25528055377 in words is "twenty-five billion, five hundred twenty-eight million, fifty-five thousand, three hundred seventy-seven".