42532601551 has 4 divisors (see below), whose sum is σ = 46399201704. Its totient is φ = 38666001400.

The previous prime is 42532601533. The next prime is 42532601593. The reversal of 42532601551 is 15510623524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42532601551 - 2⁹ = 42532601039 is a prime.

It is a super-2 number, since 2×42532601551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42532601651) 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, 1933300060 + ... + 1933300081.

It is an arithmetic number, because the mean of its divisors is an integer number (11599800426).

Almost surely, 2^42532601551 is an apocalyptic number.

42532601551 is a deficient number, since it is larger than the sum of its proper divisors (3866600153).

42532601551 is a wasteful number, since it uses less digits than its factorization.

42532601551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866600152.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 42532601551 in words is "forty-two billion, five hundred thirty-two million, six hundred one thousand, five hundred fifty-one".