1553252904 has 48 divisors (see below), whose sum is σ = 4807689120. Its totient is φ = 443786400.

The previous prime is 1553252903. The next prime is 1553252929. The reversal of 1553252904 is 4092523551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1553252903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540422 + ... + 1541429.

It is an arithmetic number, because the mean of its divisors is an integer number (100160190).

Almost surely, 2^1553252904 is an apocalyptic number.

1553252904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1553252904 is an abundant number, since it is smaller than the sum of its proper divisors (3254436216).

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

1553252904 is a wasteful number, since it uses less digits than its factorization.

1553252904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081870 (or 3081863 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1553252904 is about 39411.3296400921. The cubic root of 1553252904 is about 1158.1035460936.

The spelling of 1553252904 in words is "one billion, five hundred fifty-three million, two hundred fifty-two thousand, nine hundred four".