1554747141025 has 27 divisors (see below), whose sum is σ = 2087701855929. Its totient is φ = 1148061114720.

The previous prime is 1554747141023. The next prime is 1554747141029. The reversal of 1554747141025 is 5201417474551.

The square root of 1554747141025 is 1246895.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 400738375521 + 1154008765504 = 633039^2 + 1074248^2 .

It is not a de Polignac number, because 1554747141025 - 2¹ = 1554747141023 is a prime.

It is a super-2 number, since 2×1554747141025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1554747141023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 81038584 + ... + 81057766.

Almost surely, 2^{1554747141025} is an apocalyptic number.

1554747141025 is the 1246895-th square number.

1554747141025 is the 623448-th centered octagonal number.

It is an amenable number.

1554747141025 is a deficient number, since it is larger than the sum of its proper divisors (532954714904).

1554747141025 is an frugal number, since it uses more digits than its factorization.

1554747141025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38402 (or 19201 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 46.

The spelling of 1554747141025 in words is "one trillion, five hundred fifty-four billion, seven hundred forty-seven million, one hundred forty-one thousand, twenty-five".