25436506062 has 64 divisors (see below), whose sum is σ = 56003270400. Its totient is φ = 7638009600.

The previous prime is 25436506049. The next prime is 25436506091. The reversal of 25436506062 is 26060563452.

It is a self number, because there is not a number n which added to its sum of digits gives 25436506062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7373314 + ... + 7376762.

It is an arithmetic number, because the mean of its divisors is an integer number (875051100).

Almost surely, 2^25436506062 is an apocalyptic number.

25436506062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25436506062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28001635200).

25436506062 is an abundant number, since it is smaller than the sum of its proper divisors (30566764338).

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

25436506062 is a wasteful number, since it uses less digits than its factorization.

25436506062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 25436506062 in words is "twenty-five billion, four hundred thirty-six million, five hundred six thousand, sixty-two".