1055674661 has 4 divisors (see below), whose sum is σ = 1078135872. Its totient is φ = 1033213452.

The previous prime is 1055674649. The next prime is 1055674667. The reversal of 1055674661 is 1664765501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055674661 is a prime.

It is a super-2 number, since 2×1055674661² = 2228897979754929842, 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 (1055674667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11230535 + ... + 11230628.

It is an arithmetic number, because the mean of its divisors is an integer number (269533968).

Almost surely, 2^1055674661 is an apocalyptic number.

It is an amenable number.

1055674661 is a deficient number, since it is larger than the sum of its proper divisors (22461211).

1055674661 is an equidigital number, since it uses as much as digits as its factorization.

1055674661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22461210.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 1055674661 is about 32491.1474251064. The cubic root of 1055674661 is about 1018.2240855287.

The spelling of 1055674661 in words is "one billion, fifty-five million, six hundred seventy-four thousand, six hundred sixty-one".