25530837 has 8 divisors (see below), whose sum is σ = 34099104. Its totient is φ = 16991568.

The previous prime is 25530833. The next prime is 25530847. The reversal of 25530837 is 73803552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25530837 - 2² = 25530833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25530798 and 25530807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5103 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (4262388).

Almost surely, 2^25530837 is an apocalyptic number.

It is an amenable number.

25530837 is a deficient number, since it is larger than the sum of its proper divisors (8568267).

25530837 is a wasteful number, since it uses less digits than its factorization.

25530837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14499.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 25530837 is about 5052.8048646272. The cubic root of 25530837 is about 294.4568652277.

The spelling of 25530837 in words is "twenty-five million, five hundred thirty thousand, eight hundred thirty-seven".