1553022250 has 64 divisors (see below), whose sum is σ = 3315180960. Its totient is φ = 539673600.

The previous prime is 1553022227. The next prime is 1553022257. The reversal of 1553022250 is 522203551.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 529598169 + 1023424081 = 23013^2 + 31991^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1553022257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41196 + ... + 69304.

Almost surely, 2^1553022250 is an apocalyptic number.

1553022250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1553022250 is an abundant number, since it is smaller than the sum of its proper divisors (1762158710).

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

1553022250 is a wasteful number, since it uses less digits than its factorization.

1553022250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28156 (or 28146 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1553022250 is about 39408.4032916839. The cubic root of 1553022250 is about 1158.0462181384.

The spelling of 1553022250 in words is "one billion, five hundred fifty-three million, twenty-two thousand, two hundred fifty".