254153421401553 has 40 divisors (see below), whose sum is σ = 391320243205056. Its totient is φ = 164310685509600.

The previous prime is 254153421401513. The next prime is 254153421401647. The reversal of 254153421401553 is 355104124351452.

254153421401553 is a `hidden beast` number, since 2 + 5 + 4 + 1 + 5 + 34 + 21 + 40 + 1 + 553 = 666.

It is not a de Polignac number, because 254153421401553 - 2¹⁴ = 254153421385169 is a prime.

It is a super-2 number, since 2×254153421401553² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254153421401499 and 254153421401508.

It is not an unprimeable number, because it can be changed into a prime (254153421401513) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 361886151 + ... + 362587772.

Almost surely, 2^{254153421401553} is an apocalyptic number.

It is an amenable number.

254153421401553 is a deficient number, since it is larger than the sum of its proper divisors (137166821803503).

254153421401553 is an equidigital number, since it uses as much as digits as its factorization.

254153421401553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724474067 (or 724474058 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 254153421401553 in words is "two hundred fifty-four trillion, one hundred fifty-three billion, four hundred twenty-one million, four hundred one thousand, five hundred fifty-three".