25154760820 has 96 divisors (see below), whose sum is σ = 63970744320. Its totient is φ = 8116329600.

The previous prime is 25154760817. The next prime is 25154760823. The reversal of 25154760820 is 2806745152.

It is an interprime number because it is at equal distance from previous prime (25154760817) and next prime (25154760823).

It is a super-2 number, since 2×25154760820² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25154760823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370347 + ... + 432973.

It is an arithmetic number, because the mean of its divisors is an integer number (666361920).

Almost surely, 2^25154760820 is an apocalyptic number.

25154760820 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 25154760820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31985372160).

25154760820 is an abundant number, since it is smaller than the sum of its proper divisors (38815983500).

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

25154760820 is a wasteful number, since it uses less digits than its factorization.

25154760820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62813 (or 62811 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 25154760820 in words is "twenty-five billion, one hundred fifty-four million, seven hundred sixty thousand, eight hundred twenty".