25140505633 has 8 divisors (see below), whose sum is σ = 26654079200. Its totient is φ = 23645971008.

The previous prime is 25140505589. The next prime is 25140505693. The reversal of 25140505633 is 33650504152.

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 25140505633 - 2³³ = 16550571041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25140505693) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4757016 + ... + 4762297.

It is an arithmetic number, because the mean of its divisors is an integer number (3331759900).

Almost surely, 2^25140505633 is an apocalyptic number.

It is an amenable number.

25140505633 is a deficient number, since it is larger than the sum of its proper divisors (1513573567).

25140505633 is a wasteful number, since it uses less digits than its factorization.

25140505633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519471.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 25140505633 in words is "twenty-five billion, one hundred forty million, five hundred five thousand, six hundred thirty-three".