25372157775 has 24 divisors (see below), whose sum is σ = 44156459520. Its totient is φ = 12819615840.

The previous prime is 25372157747. The next prime is 25372157777. The reversal of 25372157775 is 57775127352.

It is not a de Polignac number, because 25372157775 - 2⁵ = 25372157743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25372157777) 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 23 ways as a sum of consecutive naturals, for example, 8901087 + ... + 8903936.

It is an arithmetic number, because the mean of its divisors is an integer number (1839852480).

Almost surely, 2^25372157775 is an apocalyptic number.

25372157775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25372157775 is a deficient number, since it is larger than the sum of its proper divisors (18784301745).

25372157775 is a wasteful number, since it uses less digits than its factorization.

25372157775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17805055 (or 17805050 counting only the distinct ones).

The product of its digits is 3601500, while the sum is 51.

The spelling of 25372157775 in words is "twenty-five billion, three hundred seventy-two million, one hundred fifty-seven thousand, seven hundred seventy-five".