25225155775 has 12 divisors (see below), whose sum is σ = 31582877872. Its totient is φ = 19984199040.

The previous prime is 25225155757. The next prime is 25225155803. The reversal of 25225155775 is 57755152252.

It is a happy number.

It is not a de Polignac number, because 25225155775 - 2¹³ = 25225147583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4895514 + ... + 4900663.

Almost surely, 2^25225155775 is an apocalyptic number.

25225155775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25225155775 is a deficient number, since it is larger than the sum of its proper divisors (6357722097).

25225155775 is a wasteful number, since it uses less digits than its factorization.

25225155775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9796290 (or 9796285 counting only the distinct ones).

The product of its digits is 1225000, while the sum is 46.

The spelling of 25225155775 in words is "twenty-five billion, two hundred twenty-five million, one hundred fifty-five thousand, seven hundred seventy-five".