25040516213 has 4 divisors (see below), whose sum is σ = 25237685760. Its totient is φ = 24843346668.

The previous prime is 25040516209. The next prime is 25040516219. The reversal of 25040516213 is 31261504052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25040516213 - 2² = 25040516209 is a prime.

It is a super-2 number, since 2×25040516213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25040516219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98584583 + ... + 98584836.

It is an arithmetic number, because the mean of its divisors is an integer number (6309421440).

Almost surely, 2^25040516213 is an apocalyptic number.

It is an amenable number.

25040516213 is a deficient number, since it is larger than the sum of its proper divisors (197169547).

25040516213 is a wasteful number, since it uses less digits than its factorization.

25040516213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197169546.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 25040516213 in words is "twenty-five billion, forty million, five hundred sixteen thousand, two hundred thirteen".