1613097555 has 32 divisors (see below), whose sum is σ = 2667091968. Its totient is φ = 831667200.

The previous prime is 1613097533. The next prime is 1613097557. The reversal of 1613097555 is 5557903161.

It is not a de Polignac number, because 1613097555 - 2⁶ = 1613097491 is a prime.

It is a super-3 number, since 3×1613097555³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1613097557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774115 + ... + 776195.

It is an arithmetic number, because the mean of its divisors is an integer number (83346624).

Almost surely, 2^1613097555 is an apocalyptic number.

1613097555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1613097555 is a deficient number, since it is larger than the sum of its proper divisors (1053994413).

1613097555 is a wasteful number, since it uses less digits than its factorization.

1613097555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 141750, while the sum is 42.

The square root of 1613097555 is about 40163.3857512038. The cubic root of 1613097555 is about 1172.7898832107.

The spelling of 1613097555 in words is "one billion, six hundred thirteen million, ninety-seven thousand, five hundred fifty-five".