25425000061 has 8 divisors (see below), whose sum is σ = 25670960640. Its totient is φ = 25179194208.

The previous prime is 25425000037. The next prime is 25425000079. The reversal of 25425000061 is 16000052452.

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 25425000061 - 2¹⁹ = 25424475773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306340 + ... + 380386.

It is an arithmetic number, because the mean of its divisors is an integer number (3208870080).

Almost surely, 2^25425000061 is an apocalyptic number.

It is an amenable number.

25425000061 is a deficient number, since it is larger than the sum of its proper divisors (245960579).

25425000061 is a wasteful number, since it uses less digits than its factorization.

25425000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77363.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 25425000061 in words is "twenty-five billion, four hundred twenty-five million, sixty-one", and thus it is an aban number.