25140301616 has 20 divisors (see below), whose sum is σ = 50827132272. Its totient is φ = 12023622336.

The previous prime is 25140301603. The next prime is 25140301643. The reversal of 25140301616 is 61610304152.

It is a happy number.

It is a super-2 number, since 2×25140301616² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34157651 + ... + 34158386.

Almost surely, 2^25140301616 is an apocalyptic number.

It is an amenable number.

25140301616 is an abundant number, since it is smaller than the sum of its proper divisors (25686830656).

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

25140301616 is a wasteful number, since it uses less digits than its factorization.

25140301616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68316068 (or 68316062 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 25140301616 its reverse (61610304152), we get a palindrome (86750605768).

The spelling of 25140301616 in words is "twenty-five billion, one hundred forty million, three hundred one thousand, six hundred sixteen".