25029797 has 16 divisors (see below), whose sum is σ = 29321712. Its totient is φ = 21150720.

The previous prime is 25029769. The next prime is 25029811. The reversal of 25029797 is 79792052.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5013121 + 20016676 = 2239^2 + 4474^2 .

It is not a de Polignac number, because 25029797 - 2⁶ = 25029733 is a prime.

It is a super-3 number, since 3×25029797³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25023797) 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, 6647 + ... + 9707.

It is an arithmetic number, because the mean of its divisors is an integer number (1832607).

Almost surely, 2^25029797 is an apocalyptic number.

It is an amenable number.

25029797 is a deficient number, since it is larger than the sum of its proper divisors (4291915).

25029797 is a wasteful number, since it uses less digits than its factorization.

25029797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 25029797 is about 5002.9788126675. The cubic root of 25029797 is about 292.5178969739.

The spelling of 25029797 in words is "twenty-five million, twenty-nine thousand, seven hundred ninety-seven".