42420525553 has 8 divisors (see below), whose sum is σ = 48909633408. Its totient is φ = 36038675904.

The previous prime is 42420525551. The next prime is 42420525557. The reversal of 42420525553 is 35552502424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42420525553 - 2¹ = 42420525551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42420525551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26813701 + ... + 26815282.

It is an arithmetic number, because the mean of its divisors is an integer number (6113704176).

Almost surely, 2^42420525553 is an apocalyptic number.

It is an amenable number.

42420525553 is a deficient number, since it is larger than the sum of its proper divisors (6489107855).

42420525553 is a wasteful number, since it uses less digits than its factorization.

42420525553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53629103.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 42420525553 in words is "forty-two billion, four hundred twenty million, five hundred twenty-five thousand, five hundred fifty-three".