15255142340 has 24 divisors (see below), whose sum is σ = 32062974552. Its totient is φ = 6096880640.

The previous prime is 15255142333. The next prime is 15255142367. The reversal of 15255142340 is 4324155251.

It can be written as a sum of positive squares in 4 ways, for example, as 6301819456 + 8953322884 = 79384^2 + 94622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15255142297 and 15255142306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299309 + ... + 346548.

It is an arithmetic number, because the mean of its divisors is an integer number (1335957273).

Almost surely, 2^15255142340 is an apocalyptic number.

15255142340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15255142340 is an abundant number, since it is smaller than the sum of its proper divisors (16807832212).

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

15255142340 is a wasteful number, since it uses less digits than its factorization.

15255142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647047 (or 647045 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 15255142340 its reverse (4324155251), we get a palindrome (19579297591).

The spelling of 15255142340 in words is "fifteen billion, two hundred fifty-five million, one hundred forty-two thousand, three hundred forty".