25310541420 has 120 divisors (see below), whose sum is σ = 80186763888. Its totient is φ = 6682608000.

The previous prime is 25310541413. The next prime is 25310541427. The reversal of 25310541420 is 2414501352.

It is an interprime number because it is at equal distance from previous prime (25310541413) and next prime (25310541427).

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

It is not an unprimeable number, because it can be changed into a prime (25310541427) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 86275 + ... + 240965.

Almost surely, 2^25310541420 is an apocalyptic number.

25310541420 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 25310541420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40093381944).

25310541420 is an abundant number, since it is smaller than the sum of its proper divisors (54876222468).

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

25310541420 is a wasteful number, since it uses less digits than its factorization.

25310541420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154813 (or 154802 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

It can be divided in two parts, 25310541 and 420, that added together give a square (25310961 = 5031²).

The spelling of 25310541420 in words is "twenty-five billion, three hundred ten million, five hundred forty-one thousand, four hundred twenty".