25237501 has 2 divisors, whose sum is σ = 25237502. Its totient is φ = 25237500.

The previous prime is 25237483. The next prime is 25237507. The reversal of 25237501 is 10573252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14175225 + 11062276 = 3765^2 + 3326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25237501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25237507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618750 + 12618751.

It is an arithmetic number, because the mean of its divisors is an integer number (12618751).

Almost surely, 2^25237501 is an apocalyptic number.

It is an amenable number.

25237501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25237501 is an equidigital number, since it uses as much as digits as its factorization.

25237501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 25237501 is about 5023.6939596277. The cubic root of 25237501 is about 293.3247998838.

The spelling of 25237501 in words is "twenty-five million, two hundred thirty-seven thousand, five hundred one".