554401553 has 4 divisors (see below), whose sum is σ = 555999600. Its totient is φ = 552803508.

The previous prime is 554401531. The next prime is 554401567. The reversal of 554401553 is 355104455.

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, and also an emirpimes, since its reverse is a distinct semiprime: 355104455 = 5 ⋅71020891.

It is a cyclic number.

It is not a de Polignac number, because 554401553 - 2¹² = 554397457 is a prime.

It is a super-2 number, since 2×554401553² = 614722163937623618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554401853) 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, 798503 + ... + 799196.

It is an arithmetic number, because the mean of its divisors is an integer number (138999900).

Almost surely, 2^554401553 is an apocalyptic number.

It is an amenable number.

554401553 is a deficient number, since it is larger than the sum of its proper divisors (1598047).

554401553 is a wasteful number, since it uses less digits than its factorization.

554401553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598046.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 554401553 is about 23545.7332228156. The cubic root of 554401553 is about 821.5010938637.

The spelling of 554401553 in words is "five hundred fifty-four million, four hundred one thousand, five hundred fifty-three".