253055757 has 4 divisors (see below), whose sum is σ = 337407680. Its totient is φ = 168703836.

The previous prime is 253055753. The next prime is 253055771. The reversal of 253055757 is 757550352.

253055757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 253055757 - 2² = 253055753 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 (253055753) 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, 42175957 + ... + 42175962.

It is an arithmetic number, because the mean of its divisors is an integer number (84351920).

Almost surely, 2^253055757 is an apocalyptic number.

It is an amenable number.

253055757 is a deficient number, since it is larger than the sum of its proper divisors (84351923).

253055757 is an equidigital number, since it uses as much as digits as its factorization.

253055757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84351922.

The product of its (nonzero) digits is 183750, while the sum is 39.

The square root of 253055757 is about 15907.7263303088. The cubic root of 253055757 is about 632.5168129179.

The spelling of 253055757 in words is "two hundred fifty-three million, fifty-five thousand, seven hundred fifty-seven".