1097935551 has 24 divisors (see below), whose sum is σ = 1612559520. Its totient is φ = 719712000.

The previous prime is 1097935541. The next prime is 1097935589. The reversal of 1097935551 is 1555397901.

1097935551 is a `hidden beast` number, since 1 + 0 + 9 + 7 + 93 + 5 + 551 = 666.

1097935551 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1097935551 - 2⁵ = 1097935519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097935497 and 1097935506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097935541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259251 + ... + 263451.

It is an arithmetic number, because the mean of its divisors is an integer number (67189980).

Almost surely, 2^1097935551 is an apocalyptic number.

1097935551 is a deficient number, since it is larger than the sum of its proper divisors (514623969).

1097935551 is a wasteful number, since it uses less digits than its factorization.

1097935551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 212625, while the sum is 45.

The square root of 1097935551 is about 33135.1105475748. The cubic root of 1097935551 is about 1031.6339262947.

The spelling of 1097935551 in words is "one billion, ninety-seven million, nine hundred thirty-five thousand, five hundred fifty-one".