1557441053 has 8 divisors (see below), whose sum is σ = 1793520960. Its totient is φ = 1324758240.

The previous prime is 1557441013. The next prime is 1557441059. The reversal of 1557441053 is 3501447551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1557441053 - 2¹² = 1557436957 is a prime.

It is a super-3 number, since 3×1557441053³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557441059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848288 + ... + 850121.

It is an arithmetic number, because the mean of its divisors is an integer number (224190120).

Almost surely, 2^1557441053 is an apocalyptic number.

It is an amenable number.

1557441053 is a deficient number, since it is larger than the sum of its proper divisors (236079907).

1557441053 is a wasteful number, since it uses less digits than its factorization.

1557441053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698547.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1557441053 is about 39464.4276912766. The cubic root of 1557441053 is about 1159.1435049437.

The spelling of 1557441053 in words is "one billion, five hundred fifty-seven million, four hundred forty-one thousand, fifty-three".