1553514515057 has 2 divisors, whose sum is σ = 1553514515058. Its totient is φ = 1553514515056.

The previous prime is 1553514515041. The next prime is 1553514515129. The reversal of 1553514515057 is 7505154153551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324580017216 + 228934497841 = 1150904^2 + 478471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553514515057 - 2⁴ = 1553514515041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1553514545057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776757257528 + 776757257529.

It is an arithmetic number, because the mean of its divisors is an integer number (776757257529).

Almost surely, 2^{1553514515057} is an apocalyptic number.

It is an amenable number.

1553514515057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553514515057 is an equidigital number, since it uses as much as digits as its factorization.

1553514515057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312500, while the sum is 47.

The spelling of 1553514515057 in words is "one trillion, five hundred fifty-three billion, five hundred fourteen million, five hundred fifteen thousand, fifty-seven".