1253056061 has 4 divisors (see below), whose sum is σ = 1319006400. Its totient is φ = 1187105724.

The previous prime is 1253056019. The next prime is 1253056081. The reversal of 1253056061 is 1606503521.

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-1253056061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253056081) 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, 32975141 + ... + 32975178.

It is an arithmetic number, because the mean of its divisors is an integer number (329751600).

Almost surely, 2^1253056061 is an apocalyptic number.

It is an amenable number.

1253056061 is a deficient number, since it is larger than the sum of its proper divisors (65950339).

1253056061 is an equidigital number, since it uses as much as digits as its factorization.

1253056061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65950338.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1253056061 is about 35398.5319045861. The cubic root of 1253056061 is about 1078.0945084043.

Adding to 1253056061 its reverse (1606503521), we get a palindrome (2859559582).

The spelling of 1253056061 in words is "one billion, two hundred fifty-three million, fifty-six thousand, sixty-one".