25225537 has 16 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 23443200.

The previous prime is 25225523. The next prime is 25225553. The reversal of 25225537 is 73552252.

It is a cyclic number.

It is not a de Polignac number, because 25225537 - 2¹¹ = 25223489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25225499 and 25225508.

It is not an unprimeable number, because it can be changed into a prime (25225237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113008 + ... + 113230.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^25225537 is an apocalyptic number.

It is an amenable number.

25225537 is a deficient number, since it is larger than the sum of its proper divisors (1869503).

25225537 is a wasteful number, since it uses less digits than its factorization.

25225537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 21000, while the sum is 31.

The square root of 25225537 is about 5022.5030612236. The cubic root of 25225537 is about 293.2784417203.

Adding to 25225537 its reverse (73552252), we get a palindrome (98777789).

The spelling of 25225537 in words is "twenty-five million, two hundred twenty-five thousand, five hundred thirty-seven".