25085537 has 8 divisors (see below), whose sum is σ = 25627296. Its totient is φ = 24548832.

The previous prime is 25085509. The next prime is 25085539. The reversal of 25085537 is 73558052.

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

It is a cyclic number.

It is not a de Polignac number, because 25085537 - 2¹⁴ = 25069153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25085497 and 25085506.

It is not an unprimeable number, because it can be changed into a prime (25085539) 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, 9773 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (3203412).

Almost surely, 2^25085537 is an apocalyptic number.

It is an amenable number.

25085537 is a deficient number, since it is larger than the sum of its proper divisors (541759).

25085537 is a wasteful number, since it uses less digits than its factorization.

25085537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 25085537 is about 5008.5463959117. The cubic root of 25085537 is about 292.7348764820.

It can be divided in two parts, 25085 and 537, that multiplied together give a triangular number (13470645 = T₅₁₉₀).

The spelling of 25085537 in words is "twenty-five million, eighty-five thousand, five hundred thirty-seven".