1553402041 has 4 divisors (see below), whose sum is σ = 1557200500. Its totient is φ = 1549603584.

The previous prime is 1553402017. The next prime is 1553402077. The reversal of 1553402041 is 1402043551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1444304016 + 109098025 = 38004^2 + 10445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553402041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1553401997 and 1553402015.

It is not an unprimeable number, because it can be changed into a prime (1553402341) 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, 1898616 + ... + 1899433.

It is an arithmetic number, because the mean of its divisors is an integer number (389300125).

Almost surely, 2^1553402041 is an apocalyptic number.

It is an amenable number.

1553402041 is a deficient number, since it is larger than the sum of its proper divisors (3798459).

1553402041 is an equidigital number, since it uses as much as digits as its factorization.

1553402041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798458.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1553402041 is about 39413.2216521309. The cubic root of 1553402041 is about 1158.1406103648.

Adding to 1553402041 its reverse (1402043551), we get a palindrome (2955445592).

The spelling of 1553402041 in words is "one billion, five hundred fifty-three million, four hundred two thousand, forty-one".