1554889252 has 12 divisors (see below), whose sum is σ = 3109778560. Its totient is φ = 666381096.

The previous prime is 1554889213. The next prime is 1554889261. The reversal of 1554889252 is 2529884551.

1554889252 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1554889196 and 1554889205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27765852 + ... + 27765907.

Almost surely, 2^1554889252 is an apocalyptic number.

It is an amenable number.

1554889252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1554889252 is a wasteful number, since it uses less digits than its factorization.

1554889252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55531770 (or 55531768 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 49.

The square root of 1554889252 is about 39432.0840433270. The cubic root of 1554889252 is about 1158.5100897468.

The spelling of 1554889252 in words is "one billion, five hundred fifty-four million, eight hundred eighty-nine thousand, two hundred fifty-two".