1553465325503 has 24 divisors (see below), whose sum is σ = 1959728014944. Its totient is φ = 1199136879360.

The previous prime is 1553465325497. The next prime is 1553465325509. The reversal of 1553465325503 is 3055235643551.

It is an interprime number because it is at equal distance from previous prime (1553465325497) and next prime (1553465325509).

It is not a de Polignac number, because 1553465325503 - 2⁴ = 1553465325487 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553465325509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4924676 + ... + 5230617.

It is an arithmetic number, because the mean of its divisors is an integer number (81655333956).

Almost surely, 2^{1553465325503} is an apocalyptic number.

1553465325503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1553465325503 is a deficient number, since it is larger than the sum of its proper divisors (406262689441).

1553465325503 is a wasteful number, since it uses less digits than its factorization.

1553465325503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155395 (or 10155354 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 47.

The spelling of 1553465325503 in words is "one trillion, five hundred fifty-three billion, four hundred sixty-five million, three hundred twenty-five thousand, five hundred three".