1345652550 has 72 divisors (see below), whose sum is σ = 3943999800. Its totient is φ = 326217600.

The previous prime is 1345652537. The next prime is 1345652597. The reversal of 1345652550 is 552565431.

1345652550 is a `hidden beast` number, since 1 + 3 + 4 + 56 + 52 + 550 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130975 + ... + 140874.

It is an arithmetic number, because the mean of its divisors is an integer number (54777775).

Almost surely, 2^1345652550 is an apocalyptic number.

1345652550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345652550 is an abundant number, since it is smaller than the sum of its proper divisors (2598347250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345652550 is a wasteful number, since it uses less digits than its factorization.

1345652550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271878 (or 271870 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 1345652550 is about 36683.1371341111. The cubic root of 1345652550 is about 1104.0217928512.

The spelling of 1345652550 in words is "one billion, three hundred forty-five million, six hundred fifty-two thousand, five hundred fifty".