25534534 has 4 divisors (see below), whose sum is σ = 38301804. Its totient is φ = 12767266.

The previous prime is 25534519. The next prime is 25534541. The reversal of 25534534 is 43543552.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 25534496 and 25534505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383632 + ... + 6383635.

It is an arithmetic number, because the mean of its divisors is an integer number (9575451).

Almost surely, 2^25534534 is an apocalyptic number.

25534534 is a deficient number, since it is larger than the sum of its proper divisors (12767270).

25534534 is a wasteful number, since it uses less digits than its factorization.

25534534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767269.

The product of its digits is 36000, while the sum is 31.

The square root of 25534534 is about 5053.1706877959. The cubic root of 25534534 is about 294.4710775113.

The spelling of 25534534 in words is "twenty-five million, five hundred thirty-four thousand, five hundred thirty-four".