2056551225525 has 36 divisors (see below), whose sum is σ = 3843664445088. Its totient is φ = 1049139173280.

The previous prime is 2056551225511. The next prime is 2056551225557. The reversal of 2056551225525 is 5255221556502.

It is a happy number.

2056551225525 is a `hidden beast` number, since 2 + 0 + 5 + 6 + 551 + 22 + 55 + 25 = 666.

It is not a de Polignac number, because 2056551225525 - 2⁵ = 2056551225493 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198695427 + ... + 198705776.

It is an arithmetic number, because the mean of its divisors is an integer number (106768456808).

Almost surely, 2^{2056551225525} is an apocalyptic number.

2056551225525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2056551225525 is a deficient number, since it is larger than the sum of its proper divisors (1787113219563).

2056551225525 is a wasteful number, since it uses less digits than its factorization.

2056551225525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397401242 (or 397401234 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

The spelling of 2056551225525 in words is "two trillion, fifty-six billion, five hundred fifty-one million, two hundred twenty-five thousand, five hundred twenty-five".