25349436015780 has 96 divisors (see below), whose sum is σ = 71253204422400. Its totient is φ = 6733687454208.

The previous prime is 25349436015779. The next prime is 25349436015823. The reversal of 25349436015780 is 8751063494352.

It is a self number, because there is not a number n which added to its sum of digits gives 25349436015780.

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, 108166209 + ... + 108400311.

It is an arithmetic number, because the mean of its divisors is an integer number (742220879400).

It is a 1-persistent number, because it is pandigital, but 2⋅25349436015780 = 50698872031560 is not.

Almost surely, 2^{25349436015780} is an apocalyptic number.

25349436015780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25349436015780 is an abundant number, since it is smaller than the sum of its proper divisors (45903768406620).

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

25349436015780 is a wasteful number, since it uses less digits than its factorization.

25349436015780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241093 (or 241091 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 25349436015780 in words is "twenty-five trillion, three hundred forty-nine billion, four hundred thirty-six million, fifteen thousand, seven hundred eighty".