1536223425 has 48 divisors (see below), whose sum is σ = 2775060480. Its totient is φ = 743688000.

The previous prime is 1536223399. The next prime is 1536223427. The reversal of 1536223425 is 5243226351.

It is a happy number.

It is not a de Polignac number, because 1536223425 - 2¹² = 1536219329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1536223427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 816636 + ... + 818514.

It is an arithmetic number, because the mean of its divisors is an integer number (57813760).

Almost surely, 2^1536223425 is an apocalyptic number.

1536223425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1536223425 is a deficient number, since it is larger than the sum of its proper divisors (1238837055).

1536223425 is a wasteful number, since it uses less digits than its factorization.

1536223425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2889 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 1536223425 is about 39194.6861832060. The cubic root of 1536223425 is about 1153.8555970424.

Adding to 1536223425 its reverse (5243226351), we get a palindrome (6779449776).

The spelling of 1536223425 in words is "one billion, five hundred thirty-six million, two hundred twenty-three thousand, four hundred twenty-five".