25042250511 has 24 divisors (see below), whose sum is σ = 36726168960. Its totient is φ = 16439320656.

The previous prime is 25042250509. The next prime is 25042250551. The reversal of 25042250511 is 11505224052.

It is not a de Polignac number, because 25042250511 - 2¹ = 25042250509 is a prime.

It is a super-2 number, since 2×25042250511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042250551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1958806 + ... + 1971548.

It is an arithmetic number, because the mean of its divisors is an integer number (1530257040).

Almost surely, 2^25042250511 is an apocalyptic number.

25042250511 is a deficient number, since it is larger than the sum of its proper divisors (11683918449).

25042250511 is a wasteful number, since it uses less digits than its factorization.

25042250511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16075 (or 16072 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 25042250511 its reverse (11505224052), we get a palindrome (36547474563).

The spelling of 25042250511 in words is "twenty-five billion, forty-two million, two hundred fifty thousand, five hundred eleven".