25501060860 has 48 divisors (see below), whose sum is σ = 77894151552. Its totient is φ = 6182075200.

The previous prime is 25501060853. The next prime is 25501060867. The reversal of 25501060860 is 6806010552.

It is an interprime number because it is at equal distance from previous prime (25501060853) and next prime (25501060867).

It is a super-3 number, since 3×25501060860³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25501060867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19318326 + ... + 19319645.

It is an arithmetic number, because the mean of its divisors is an integer number (1622794824).

Almost surely, 2^25501060860 is an apocalyptic number.

25501060860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25501060860 is an abundant number, since it is smaller than the sum of its proper divisors (52393090692).

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

25501060860 is a wasteful number, since it uses less digits than its factorization.

25501060860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38637994 (or 38637992 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 25501060860 in words is "twenty-five billion, five hundred one million, sixty thousand, eight hundred sixty".