55187050353525 has 36 divisors (see below), whose sum is σ = 99259721346240. Its totient is φ = 29309942474400.

The previous prime is 55187050353521. The next prime is 55187050353551. The reversal of 55187050353525 is 52535305078155.

55187050353525 is a `hidden beast` number, since 5 + 5 + 1 + 87 + 0 + 5 + 0 + 3 + 535 + 25 = 666.

It is not a de Polignac number, because 55187050353525 - 2² = 55187050353521 is a prime.

It is a super-2 number, since 2×55187050353525² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55187050353521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 513075471 + ... + 513183020.

It is an arithmetic number, because the mean of its divisors is an integer number (2757214481840).

Almost surely, 2^{55187050353525} is an apocalyptic number.

It is an amenable number.

55187050353525 is a deficient number, since it is larger than the sum of its proper divisors (44072670992715).

55187050353525 is a wasteful number, since it uses less digits than its factorization.

55187050353525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026258746 (or 1026258738 counting only the distinct ones).

The product of its (nonzero) digits is 15750000, while the sum is 54.

The spelling of 55187050353525 in words is "fifty-five trillion, one hundred eighty-seven billion, fifty million, three hundred fifty-three thousand, five hundred twenty-five".