15522245240 has 16 divisors (see below), whose sum is σ = 34925051880. Its totient is φ = 6208898080.

The previous prime is 15522245183. The next prime is 15522245293. The reversal of 15522245240 is 4254222551.

It is a junction number, because it is equal to n+sod(n) for n = 15522245197 and 15522245206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194028026 + ... + 194028105.

Almost surely, 2^15522245240 is an apocalyptic number.

15522245240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15522245240 is an abundant number, since it is smaller than the sum of its proper divisors (19402806640).

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

15522245240 is a wasteful number, since it uses less digits than its factorization.

15522245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388056142 (or 388056138 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 15522245240 its reverse (4254222551), we get a palindrome (19776467791).

The spelling of 15522245240 in words is "fifteen billion, five hundred twenty-two million, two hundred forty-five thousand, two hundred forty".