1551253404 has 24 divisors (see below), whose sum is σ = 3810096640. Its totient is φ = 489869424.

The previous prime is 1551253397. The next prime is 1551253433. The reversal of 1551253404 is 4043521551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3401644 + ... + 3402099.

Almost surely, 2^1551253404 is an apocalyptic number.

It is an amenable number.

1551253404 is an abundant number, since it is smaller than the sum of its proper divisors (2258843236).

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

1551253404 is a wasteful number, since it uses less digits than its factorization.

1551253404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803769 (or 6803767 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1551253404 is about 39385.9544000142. The cubic root of 1551253404 is about 1157.6063910841.

Adding to 1551253404 its reverse (4043521551), we get a palindrome (5594774955).

The spelling of 1551253404 in words is "one billion, five hundred fifty-one million, two hundred fifty-three thousand, four hundred four".