15255420021034 has 8 divisors (see below), whose sum is σ = 23009556164868. Its totient is φ = 7585567966080.

The previous prime is 15255420021031. The next prime is 15255420021043. The reversal of 15255420021034 is 43012002455251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11141609789025 + 4113810232009 = 3337905^2 + 2028253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (15255420021031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21071021767 + ... + 21071022490.

Almost surely, 2^{15255420021034} is an apocalyptic number.

15255420021034 is a deficient number, since it is larger than the sum of its proper divisors (7754136143834).

15255420021034 is a wasteful number, since it uses less digits than its factorization.

15255420021034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42142044440.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 15255420021034 its reverse (43012002455251), we get a palindrome (58267422476285).

The spelling of 15255420021034 in words is "fifteen trillion, two hundred fifty-five billion, four hundred twenty million, twenty-one thousand, thirty-four".