15020535490 has 16 divisors (see below), whose sum is σ = 27547096248. Its totient is φ = 5894851456.

The previous prime is 15020535479. The next prime is 15020535547. The reversal of 15020535490 is 9453502051.

It can be written as a sum of positive squares in 4 ways, for example, as 12833944369 + 2186591121 = 113287^2 + 46761^2 .

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, 14169787 + ... + 14170846.

Almost surely, 2^15020535490 is an apocalyptic number.

15020535490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15020535490 is a deficient number, since it is larger than the sum of its proper divisors (12526560758).

15020535490 is a wasteful number, since it uses less digits than its factorization.

15020535490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28340693.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 15020535490 in words is "fifteen billion, twenty million, five hundred thirty-five thousand, four hundred ninety".