1375455511 has 16 divisors (see below), whose sum is σ = 1420623360. Its totient is φ = 1331197920.

The previous prime is 1375455509. The next prime is 1375455541. The reversal of 1375455511 is 1155545731.

It is a cyclic number.

It is not a de Polignac number, because 1375455511 - 2¹ = 1375455509 is a prime.

It is a super-2 number, since 2×1375455511² = 3783755725480542242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375455541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124046 + ... + 1125268.

It is an arithmetic number, because the mean of its divisors is an integer number (88788960).

Almost surely, 2^1375455511 is an apocalyptic number.

1375455511 is a deficient number, since it is larger than the sum of its proper divisors (45167849).

1375455511 is a wasteful number, since it uses less digits than its factorization.

1375455511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its digits is 52500, while the sum is 37.

The square root of 1375455511 is about 37087.1340359430. The cubic root of 1375455511 is about 1112.1128253511.

The spelling of 1375455511 in words is "one billion, three hundred seventy-five million, four hundred fifty-five thousand, five hundred eleven".