2061253406 has 4 divisors (see below), whose sum is σ = 3091880112. Its totient is φ = 1030626702.

The previous prime is 2061253367. The next prime is 2061253421. The reversal of 2061253406 is 6043521602.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515313350 + ... + 515313353.

It is an arithmetic number, because the mean of its divisors is an integer number (772970028).

Almost surely, 2^2061253406 is an apocalyptic number.

2061253406 is a deficient number, since it is larger than the sum of its proper divisors (1030626706).

2061253406 is a wasteful number, since it uses less digits than its factorization.

2061253406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030626705.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2061253406 is about 45401.0286887863. The cubic root of 2061253406 is about 1272.6543377169.

The spelling of 2061253406 in words is "two billion, sixty-one million, two hundred fifty-three thousand, four hundred six".