25196213525 has 12 divisors (see below), whose sum is σ = 35706634272. Its totient is φ = 17277403440.

The previous prime is 25196213507. The next prime is 25196213531. The reversal of 25196213525 is 52531269152.

It is not a de Polignac number, because 25196213525 - 2¹⁰ = 25196212501 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, 71989007 + ... + 71989356.

It is an arithmetic number, because the mean of its divisors is an integer number (2975552856).

Almost surely, 2^25196213525 is an apocalyptic number.

25196213525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25196213525 is a deficient number, since it is larger than the sum of its proper divisors (10510420747).

25196213525 is a wasteful number, since it uses less digits than its factorization.

25196213525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143978380 (or 143978375 counting only the distinct ones).

The product of its digits is 162000, while the sum is 41.

The spelling of 25196213525 in words is "twenty-five billion, one hundred ninety-six million, two hundred thirteen thousand, five hundred twenty-five".