25001401390 has 32 divisors (see below), whose sum is σ = 54456836544. Its totient is φ = 8067678720.

The previous prime is 25001401367. The next prime is 25001401391. The reversal of 25001401390 is 9310410052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001401391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10503601 + ... + 10505980.

It is an arithmetic number, because the mean of its divisors is an integer number (1701776142).

Almost surely, 2^25001401390 is an apocalyptic number.

25001401390 is an abundant number, since it is smaller than the sum of its proper divisors (29455435154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25001401390 is a wasteful number, since it uses less digits than its factorization.

25001401390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21009612.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 25001401390 in words is "twenty-five billion, one million, four hundred one thousand, three hundred ninety".