253272121557 has 64 divisors (see below), whose sum is σ = 437246208000. Its totient is φ = 126800932608.

The previous prime is 253272121517. The next prime is 253272121561. The reversal of 253272121557 is 755121272352.

It is not a de Polignac number, because 253272121557 - 2¹⁶ = 253272056021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253272121507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195994 + ... + 738212.

It is an arithmetic number, because the mean of its divisors is an integer number (6831972000).

Almost surely, 2^253272121557 is an apocalyptic number.

It is an amenable number.

253272121557 is a deficient number, since it is larger than the sum of its proper divisors (183974086443).

253272121557 is a wasteful number, since it uses less digits than its factorization.

253272121557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542330.

The product of its digits is 294000, while the sum is 42.

The spelling of 253272121557 in words is "two hundred fifty-three billion, two hundred seventy-two million, one hundred twenty-one thousand, five hundred fifty-seven".