42552553 has 16 divisors (see below), whose sum is σ = 47102976. Its totient is φ = 38301120.

The previous prime is 42552539. The next prime is 42552569. The reversal of 42552553 is 35525524.

It is a happy number.

It is not a de Polignac number, because 42552553 - 2¹³ = 42544361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42552583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25575 + ... + 27187.

It is an arithmetic number, because the mean of its divisors is an integer number (2943936).

Almost surely, 2^42552553 is an apocalyptic number.

It is an amenable number.

42552553 is a deficient number, since it is larger than the sum of its proper divisors (4550423).

42552553 is a wasteful number, since it uses less digits than its factorization.

42552553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its digits is 30000, while the sum is 31.

The square root of 42552553 is about 6523.2317910680. The cubic root of 42552553 is about 349.1203844104.

The spelling of 42552553 in words is "forty-two million, five hundred fifty-two thousand, five hundred fifty-three".