1355311551 has 16 divisors (see below), whose sum is σ = 1976347008. Its totient is φ = 819324000.

The previous prime is 1355311513. The next prime is 1355311561. The reversal of 1355311551 is 1551135531.

1355311551 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 1355311551 - 2⁷ = 1355311423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355311511) 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, 38625 + ... + 64826.

It is an arithmetic number, because the mean of its divisors is an integer number (123521688).

Almost surely, 2^1355311551 is an apocalyptic number.

1355311551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1355311551 is a deficient number, since it is larger than the sum of its proper divisors (621035457).

1355311551 is a wasteful number, since it uses less digits than its factorization.

1355311551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103862.

The product of its digits is 5625, while the sum is 30.

The square root of 1355311551 is about 36814.5562379883. The cubic root of 1355311551 is about 1106.6570284015.

The spelling of 1355311551 in words is "one billion, three hundred fifty-five million, three hundred eleven thousand, five hundred fifty-one".