1553042564 has 12 divisors (see below), whose sum is σ = 2718306444. Its totient is φ = 776383584.

The previous prime is 1553042563. The next prime is 1553042581. The reversal of 1553042564 is 4652403551.

It can be written as a sum of positive squares in 2 ways, for example, as 510398464 + 1042644100 = 22592^2 + 32290^2 .

It is not an unprimeable number, because it can be changed into a prime (1553042563) 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, 6539 + ... + 56114.

It is an arithmetic number, because the mean of its divisors is an integer number (226525537).

Almost surely, 2^1553042564 is an apocalyptic number.

It is an amenable number.

1553042564 is a deficient number, since it is larger than the sum of its proper divisors (1165263880).

1553042564 is a wasteful number, since it uses less digits than its factorization.

1553042564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68854 (or 68852 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 1553042564 is about 39408.6610277487. The cubic root of 1553042564 is about 1158.0512673144.

The spelling of 1553042564 in words is "one billion, five hundred fifty-three million, forty-two thousand, five hundred sixty-four".