25541501 has 2 divisors, whose sum is σ = 25541502. Its totient is φ = 25541500.

The previous prime is 25541471. The next prime is 25541519. The reversal of 25541501 is 10514552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25512601 + 28900 = 5051^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 25541501 - 2⁶ = 25541437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25541521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770750 + 12770751.

It is an arithmetic number, because the mean of its divisors is an integer number (12770751).

Almost surely, 2^25541501 is an apocalyptic number.

It is an amenable number.

25541501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25541501 is an equidigital number, since it uses as much as digits as its factorization.

25541501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 25541501 is about 5053.8600099330. The cubic root of 25541501 is about 294.4978568452.

The spelling of 25541501 in words is "twenty-five million, five hundred forty-one thousand, five hundred one".