25009420361 has 8 divisors (see below), whose sum is σ = 25602069504. Its totient is φ = 24417272880.

The previous prime is 25009420357. The next prime is 25009420363. The reversal of 25009420361 is 16302490052.

It is a happy number.

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 25009420361 - 2² = 25009420357 is a prime.

It is a super-2 number, since 2×25009420361² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25009420363) 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, 23561 + ... + 224886.

It is an arithmetic number, because the mean of its divisors is an integer number (3200258688).

Almost surely, 2^25009420361 is an apocalyptic number.

It is an amenable number.

25009420361 is a deficient number, since it is larger than the sum of its proper divisors (592649143).

25009420361 is a wasteful number, since it uses less digits than its factorization.

25009420361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250831.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 25009420361 in words is "twenty-five billion, nine million, four hundred twenty thousand, three hundred sixty-one".