15204252434 has 12 divisors (see below), whose sum is σ = 26529869214. Its totient is φ = 6516108144.

The previous prime is 15204252367. The next prime is 15204252439. The reversal of 15204252434 is 43425240251.

It can be written as a sum of positive squares in only one way, i.e., 10027018225 + 5177234209 = 100135^2 + 71953^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15204252434.

It is not an unprimeable number, because it can be changed into a prime (15204252439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77572619 + ... + 77572814.

Almost surely, 2^15204252434 is an apocalyptic number.

15204252434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15204252434 is a deficient number, since it is larger than the sum of its proper divisors (11325616780).

15204252434 is a wasteful number, since it uses less digits than its factorization.

15204252434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155145449 (or 155145442 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 15204252434 its reverse (43425240251), we get a palindrome (58629492685).

The spelling of 15204252434 in words is "fifteen billion, two hundred four million, two hundred fifty-two thousand, four hundred thirty-four".