2261434551 has 4 divisors (see below), whose sum is σ = 3015246072. Its totient is φ = 1507623032.

The previous prime is 2261434547. The next prime is 2261434559. The reversal of 2261434551 is 1554341622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261434551 - 2² = 2261434547 is a prime.

It is a super-2 number, since 2×2261434551² = 10228172456913143202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261434559) 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, 376905756 + ... + 376905761.

It is an arithmetic number, because the mean of its divisors is an integer number (753811518).

Almost surely, 2^2261434551 is an apocalyptic number.

2261434551 is a deficient number, since it is larger than the sum of its proper divisors (753811521).

2261434551 is an equidigital number, since it uses as much as digits as its factorization.

2261434551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753811520.

The product of its digits is 28800, while the sum is 33.

The square root of 2261434551 is about 47554.5429060148. The cubic root of 2261434551 is about 1312.5867252263.

The spelling of 2261434551 in words is "two billion, two hundred sixty-one million, four hundred thirty-four thousand, five hundred fifty-one".