1557052360007 has 4 divisors (see below), whose sum is σ = 1566052662840. Its totient is φ = 1548052057176.

The previous prime is 1557052360001. The next prime is 1557052360013. The reversal of 1557052360007 is 7000632507551.

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

It is an interprime number because it is at equal distance from previous prime (1557052360001) and next prime (1557052360013).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1557052360007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557052360001) 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, 4500151157 + ... + 4500151502.

It is an arithmetic number, because the mean of its divisors is an integer number (391513165710).

Almost surely, 2^{1557052360007} is an apocalyptic number.

1557052360007 is a deficient number, since it is larger than the sum of its proper divisors (9000302833).

1557052360007 is an equidigital number, since it uses as much as digits as its factorization.

1557052360007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000302832.

The product of its (nonzero) digits is 220500, while the sum is 41.

Adding to 1557052360007 its reverse (7000632507551), we get a palindrome (8557684867558).

The spelling of 1557052360007 in words is "one trillion, five hundred fifty-seven billion, fifty-two million, three hundred sixty thousand, seven".