15255120140 has 48 divisors (see below), whose sum is σ = 36315844320. Its totient is φ = 5336202240.

The previous prime is 15255120131. The next prime is 15255120151. The reversal of 15255120140 is 4102155251.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539101 + ... + 1548980.

It is an arithmetic number, because the mean of its divisors is an integer number (756580090).

Almost surely, 2^15255120140 is an apocalyptic number.

15255120140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15255120140 is an abundant number, since it is smaller than the sum of its proper divisors (21060724180).

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

15255120140 is a wasteful number, since it uses less digits than its factorization.

15255120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088122 (or 3088120 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 15255120140 its reverse (4102155251), we get a palindrome (19357275391).

The spelling of 15255120140 in words is "fifteen billion, two hundred fifty-five million, one hundred twenty thousand, one hundred forty".