1155376725 has 12 divisors (see below), whose sum is σ = 1910222976. Its totient is φ = 616200880.

The previous prime is 1155376721. The next prime is 1155376751. The reversal of 1155376725 is 5276735511.

It is not a de Polignac number, because 1155376725 - 2² = 1155376721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155376721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7702437 + ... + 7702586.

It is an arithmetic number, because the mean of its divisors is an integer number (159185248).

Almost surely, 2^1155376725 is an apocalyptic number.

1155376725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155376725 is a deficient number, since it is larger than the sum of its proper divisors (754846251).

1155376725 is a wasteful number, since it uses less digits than its factorization.

1155376725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15405036 (or 15405031 counting only the distinct ones).

The product of its digits is 220500, while the sum is 42.

The square root of 1155376725 is about 33990.8329553720. The cubic root of 1155376725 is about 1049.3198088997.

The spelling of 1155376725 in words is "one billion, one hundred fifty-five million, three hundred seventy-six thousand, seven hundred twenty-five".