25722051551 has 8 divisors (see below), whose sum is σ = 30113621664. Its totient is φ = 21509729280.

The previous prime is 25722051547. The next prime is 25722051559. The reversal of 25722051551 is 15515022752.

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 25722051551 - 2² = 25722051547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25722051559) 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, 44811650 + ... + 44812223.

It is an arithmetic number, because the mean of its divisors is an integer number (3764202708).

Almost surely, 2^25722051551 is an apocalyptic number.

25722051551 is a deficient number, since it is larger than the sum of its proper divisors (4391570113).

25722051551 is an equidigital number, since it uses as much as digits as its factorization.

25722051551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89623921.

The product of its (nonzero) digits is 35000, while the sum is 35.

The spelling of 25722051551 in words is "twenty-five billion, seven hundred twenty-two million, fifty-one thousand, five hundred fifty-one".