1009255548 has 120 divisors (see below), whose sum is σ = 2868582528. Its totient is φ = 275640288.

The previous prime is 1009255519. The next prime is 1009255591. The reversal of 1009255548 is 8455529001.

It is a super-2 number, since 2×1009255548² = 2037193522337560608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 661915 + ... + 663437.

Almost surely, 2^1009255548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1009255548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434291264).

1009255548 is an abundant number, since it is smaller than the sum of its proper divisors (1859326980).

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

1009255548 is a wasteful number, since it uses less digits than its factorization.

1009255548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 1009255548 is about 31768.7826017932. The cubic root of 1009255548 is about 1003.0757129577.

The spelling of 1009255548 in words is "one billion, nine million, two hundred fifty-five thousand, five hundred forty-eight".