1001055604 has 12 divisors (see below), whose sum is σ = 1752827328. Its totient is φ = 500247800.

The previous prime is 1001055599. The next prime is 1001055607. The reversal of 1001055604 is 4065501001.

It is a super-2 number, since 2×1001055604² = 2004224644599609632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001055607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61852 + ... + 76339.

It is an arithmetic number, because the mean of its divisors is an integer number (146068944).

Almost surely, 2^1001055604 is an apocalyptic number.

It is an amenable number.

1001055604 is a deficient number, since it is larger than the sum of its proper divisors (751771724).

1001055604 is a wasteful number, since it uses less digits than its factorization.

1001055604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140006 (or 140004 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1001055604 is about 31639.4627640862. The cubic root of 1001055604 is about 1000.3517442615.

Adding to 1001055604 its reverse (4065501001), we get a palindrome (5066556605).

The spelling of 1001055604 in words is "one billion, one million, fifty-five thousand, six hundred four".