2551240005525 has 96 divisors (see below), whose sum is σ = 4719395856000. Its totient is φ = 1351189486080.

The previous prime is 2551240005511. The next prime is 2551240005529. The reversal of 2551240005525 is 5255000421552.

2551240005525 is a `hidden beast` number, since 2 + 5 + 5 + 124 + 0 + 0 + 0 + 5 + 525 = 666.

It is not a de Polignac number, because 2551240005525 - 2⁵ = 2551240005493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2551240005525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551240005529) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141813231 + ... + 141831219.

It is an arithmetic number, because the mean of its divisors is an integer number (49160373500).

Almost surely, 2^{2551240005525} is an apocalyptic number.

2551240005525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551240005525 is a deficient number, since it is larger than the sum of its proper divisors (2168155850475).

2551240005525 is a wasteful number, since it uses less digits than its factorization.

2551240005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460 (or 19449 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 2551240005525 in words is "two trillion, five hundred fifty-one billion, two hundred forty million, five thousand, five hundred twenty-five".