25061015401 has 2 divisors, whose sum is σ = 25061015402. Its totient is φ = 25061015400.

The previous prime is 25061015389. The next prime is 25061015489. The reversal of 25061015401 is 10451016052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22604821801 + 2456193600 = 150349^2 + 49560^2 .

It is a cyclic number.

It is not a de Polignac number, because 25061015401 - 2¹¹ = 25061013353 is a prime.

It is not a weakly prime, because it can be changed into another prime (25061015501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12530507700 + 12530507701.

It is an arithmetic number, because the mean of its divisors is an integer number (12530507701).

Almost surely, 2^25061015401 is an apocalyptic number.

It is an amenable number.

25061015401 is a deficient number, since it is larger than the sum of its proper divisors (1).

25061015401 is an equidigital number, since it uses as much as digits as its factorization.

25061015401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 25061015401 in words is "twenty-five billion, sixty-one million, fifteen thousand, four hundred one".