25250074780551 has 8 divisors (see below), whose sum is σ = 35647164396144. Its totient is φ = 15843184176000.

The previous prime is 25250074780459. The next prime is 25250074780561. The reversal of 25250074780551 is 15508747005252.

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

It is not a de Polignac number, because 25250074780551 - 2¹¹ = 25250074778503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 495099505501 = 25250074780551 / (2 + 5 + 2 + 5 + 0 + 0 + 7 + 4 + 7 + 8 + 0 + 5 + 5 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 25250074780494 and 25250074780503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250074780561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247549752700 + ... + 247549752801.

It is an arithmetic number, because the mean of its divisors is an integer number (4455895549518).

Almost surely, 2^{25250074780551} is an apocalyptic number.

25250074780551 is a deficient number, since it is larger than the sum of its proper divisors (10397089615593).

25250074780551 is a wasteful number, since it uses less digits than its factorization.

25250074780551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495099505521.

The product of its (nonzero) digits is 3920000, while the sum is 51.

The spelling of 25250074780551 in words is "twenty-five trillion, two hundred fifty billion, seventy-four million, seven hundred eighty thousand, five hundred fifty-one".