25061739480 has 192 divisors, whose sum is σ = 85827456000. Its totient is φ = 6324749568.

The previous prime is 25061739467. The next prime is 25061739487. The reversal of 25061739480 is 8493716052.

25061739480 is a `hidden beast` number, since 25 + 0 + 617 + 3 + 9 + 4 + 8 + 0 = 666.

It is a Cunningham number, because it is equal to 158309²-1.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061739487) 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, 12030519 + ... + 12032601.

It is an arithmetic number, because the mean of its divisors is an integer number (447018000).

It is a 2-persistent number, because it is pandigital, and so is 2⋅25061739480 = 50123478960, but 3⋅25061739480 = 75185218440 is not.

Almost surely, 2^25061739480 is an apocalyptic number.

25061739480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25061739480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42913728000).

25061739480 is an abundant number, since it is smaller than the sum of its proper divisors (60765716520).

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

25061739480 is a wasteful number, since it uses less digits than its factorization.

25061739480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878 (or 3871 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 25061739480 in words is "twenty-five billion, sixty-one million, seven hundred thirty-nine thousand, four hundred eighty".