25000429 has 4 divisors (see below), whose sum is σ = 25248060. Its totient is φ = 24752800.

The previous prime is 25000427. The next prime is 25000439. The reversal of 25000429 is 92400052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21178404 + 3822025 = 4602^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 25000429 - 2¹ = 25000427 is a prime.

It is a Duffinian number.

25000429 is a modest number, since divided by 429 gives 25 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123664 + ... + 123865.

It is an arithmetic number, because the mean of its divisors is an integer number (6312015).

Almost surely, 2^25000429 is an apocalyptic number.

It is an amenable number.

25000429 is a deficient number, since it is larger than the sum of its proper divisors (247631).

25000429 is a wasteful number, since it uses less digits than its factorization.

25000429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247630.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25000429 is about 5000.0428998160. The cubic root of 25000429 is about 292.4034463499.

The spelling of 25000429 in words is "twenty-five million, four hundred twenty-nine", and thus it is an aban number.