25552025537 has 2 divisors, whose sum is σ = 25552025538. Its totient is φ = 25552025536.

The previous prime is 25552025489. The next prime is 25552025669. The reversal of 25552025537 is 73552025552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23446959376 + 2105066161 = 153124^2 + 45881^2 .

It is a cyclic number.

It is not a de Polignac number, because 25552025537 - 2¹² = 25552021441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25552025494 and 25552025503.

It is not a weakly prime, because it can be changed into another prime (25552825537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776012768 + 12776012769.

It is an arithmetic number, because the mean of its divisors is an integer number (12776012769).

Almost surely, 2^25552025537 is an apocalyptic number.

It is an amenable number.

25552025537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25552025537 is an equidigital number, since it uses as much as digits as its factorization.

25552025537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525000, while the sum is 41.

The spelling of 25552025537 in words is "twenty-five billion, five hundred fifty-two million, twenty-five thousand, five hundred thirty-seven".