25413534 has 16 divisors (see below), whose sum is σ = 56474640. Its totient is φ = 8471160.

The previous prime is 25413517. The next prime is 25413539. The reversal of 25413534 is 43531452.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25413498 and 25413507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25413539) 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, 235257 + ... + 235364.

It is an arithmetic number, because the mean of its divisors is an integer number (3529665).

Almost surely, 2^25413534 is an apocalyptic number.

25413534 is an abundant number, since it is smaller than the sum of its proper divisors (31061106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25413534 is a wasteful number, since it uses less digits than its factorization.

25413534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470632 (or 470626 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 25413534 is about 5041.1837895478. The cubic root of 25413534 is about 294.0052060719.

Adding to 25413534 its reverse (43531452), we get a palindrome (68944986).

The spelling of 25413534 in words is "twenty-five million, four hundred thirteen thousand, five hundred thirty-four".