25280550051 has 8 divisors (see below), whose sum is σ = 33712324800. Its totient is φ = 16851237672.

The previous prime is 25280550049. The next prime is 25280550089. The reversal of 25280550051 is 15005508252.

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

It is not a de Polignac number, because 25280550051 - 2¹ = 25280550049 is a prime.

It is a super-2 number, since 2×25280550051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25280549994 and 25280550021.

It is not an unprimeable number, because it can be changed into a prime (25280550151) 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, 591501 + ... + 632798.

It is an arithmetic number, because the mean of its divisors is an integer number (4214040600).

Almost surely, 2^25280550051 is an apocalyptic number.

25280550051 is a deficient number, since it is larger than the sum of its proper divisors (8431774749).

25280550051 is a wasteful number, since it uses less digits than its factorization.

25280550051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231185.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 25280550051 in words is "twenty-five billion, two hundred eighty million, five hundred fifty thousand, fifty-one".