1600420253 has 4 divisors (see below), whose sum is σ = 1627546080. Its totient is φ = 1573294428.

The previous prime is 1600420249. The next prime is 1600420267. The reversal of 1600420253 is 3520240061.

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 not a de Polignac number, because 1600420253 - 2² = 1600420249 is a prime.

It is a super-2 number, since 2×1600420253² = 5122689972425168018, 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 (1600120253) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 13562825 + ... + 13562942.

It is an arithmetic number, because the mean of its divisors is an integer number (406886520).

Almost surely, 2^1600420253 is an apocalyptic number.

It is an amenable number.

1600420253 is a deficient number, since it is larger than the sum of its proper divisors (27125827).

1600420253 is an equidigital number, since it uses as much as digits as its factorization.

1600420253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27125826.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1600420253 is about 40005.2528175988. The cubic root of 1600420253 is about 1169.7094885897.

The spelling of 1600420253 in words is "one billion, six hundred million, four hundred twenty thousand, two hundred fifty-three".