1552545225 has 144 divisors (see below), whose sum is σ = 3596436480. Its totient is φ = 645019200.

The previous prime is 1552545217. The next prime is 1552545251. The reversal of 1552545225 is 5225452551.

1552545225 is a `hidden beast` number, since 1 + 552 + 54 + 52 + 2 + 5 = 666.

It is not a de Polignac number, because 1552545225 - 2³ = 1552545217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1552545225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 466116 + ... + 469434.

Almost surely, 2^1552545225 is an apocalyptic number.

1552545225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552545225 is an abundant number, since it is smaller than the sum of its proper divisors (2043891255).

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

1552545225 is a wasteful number, since it uses less digits than its factorization.

1552545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362 (or 3345 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 1552545225 is about 39402.3505009536. The cubic root of 1552545225 is about 1157.9276378311.

Adding to 1552545225 its reverse (5225452551), we get a palindrome (6777997776).

The spelling of 1552545225 in words is "one billion, five hundred fifty-two million, five hundred forty-five thousand, two hundred twenty-five".