25231055242451 has 16 divisors (see below), whose sum is σ = 26114993049600. Its totient is φ = 24351536193600.

The previous prime is 25231055242447. The next prime is 25231055242469. The reversal of 25231055242451 is 15424255013252.

It is not a de Polignac number, because 25231055242451 - 2² = 25231055242447 is a prime.

It is a super-2 number, since 2×25231055242451² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25231055242399 and 25231055242408.

It is not an unprimeable number, because it can be changed into a prime (25231055242441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36116180 + ... + 36808158.

It is an arithmetic number, because the mean of its divisors is an integer number (1632187065600).

Almost surely, 2^{25231055242451} is an apocalyptic number.

25231055242451 is a deficient number, since it is larger than the sum of its proper divisors (883937807149).

25231055242451 is a wasteful number, since it uses less digits than its factorization.

25231055242451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695170.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 25231055242451 in words is "twenty-five trillion, two hundred thirty-one billion, fifty-five million, two hundred forty-two thousand, four hundred fifty-one".