25307061 has 32 divisors (see below), whose sum is σ = 38465280. Its totient is φ = 14682624.

The previous prime is 25307059. The next prime is 25307063. The reversal of 25307061 is 16070352.

It is an interprime number because it is at equal distance from previous prime (25307059) and next prime (25307063).

It is not a de Polignac number, because 25307061 - 2¹ = 25307059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25307063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79675 + ... + 79991.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 2^25307061 is an apocalyptic number.

It is an amenable number.

25307061 is a deficient number, since it is larger than the sum of its proper divisors (13158219).

25307061 is a wasteful number, since it uses less digits than its factorization.

25307061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 25307061 is about 5030.6123881691. The cubic root of 25307061 is about 293.5940414922.

It can be divided in two parts, 2530 and 7061, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 25307061 in words is "twenty-five million, three hundred seven thousand, sixty-one".