25499130462 has 96 divisors (see below), whose sum is σ = 64086422400. Its totient is φ = 7260031296.

The previous prime is 25499130413. The next prime is 25499130463. The reversal of 25499130462 is 26403199452.

25499130462 is a `hidden beast` number, since 2 + 54 + 9 + 9 + 130 + 462 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25499130463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124489 + ... + 257867.

It is an arithmetic number, because the mean of its divisors is an integer number (667566900).

Almost surely, 2^25499130462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25499130462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32043211200).

25499130462 is an abundant number, since it is smaller than the sum of its proper divisors (38587291938).

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

25499130462 is a wasteful number, since it uses less digits than its factorization.

25499130462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133462 (or 133459 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

It can be divided in two parts, 25499 and 130462, that added together give a triangular number (155961 = T₅₅₈).

The spelling of 25499130462 in words is "twenty-five billion, four hundred ninety-nine million, one hundred thirty thousand, four hundred sixty-two".