253407111557 has 8 divisors (see below), whose sum is σ = 256840281984. Its totient is φ = 249992651088.

The previous prime is 253407111533. The next prime is 253407111583. The reversal of 253407111557 is 755111704352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253407111557 - 2⁶ = 253407111493 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 (253407111527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650218 + ... + 4704395.

It is an arithmetic number, because the mean of its divisors is an integer number (32105035248).

Almost surely, 2^253407111557 is an apocalyptic number.

It is an amenable number.

253407111557 is a deficient number, since it is larger than the sum of its proper divisors (3433170427).

253407111557 is a wasteful number, since it uses less digits than its factorization.

253407111557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9354979.

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 253407111557 in words is "two hundred fifty-three billion, four hundred seven million, one hundred eleven thousand, five hundred fifty-seven".