13125552240 has 40 divisors (see below), whose sum is σ = 40689212688. Its totient is φ = 3500147200.

The previous prime is 13125552229. The next prime is 13125552247. The reversal of 13125552240 is 4225552131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13125552198 and 13125552207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125552247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27344661 + ... + 27345140.

Almost surely, 2^13125552240 is an apocalyptic number.

13125552240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125552240 is an abundant number, since it is smaller than the sum of its proper divisors (27563660448).

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

13125552240 is a wasteful number, since it uses less digits than its factorization.

13125552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54689817 (or 54689811 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 13125552240 in words is "thirteen billion, one hundred twenty-five million, five hundred fifty-two thousand, two hundred forty".