42521025224534 has 4 divisors (see below), whose sum is σ = 63781537836804. Its totient is φ = 21260512612266.

The previous prime is 42521025224527. The next prime is 42521025224621. The reversal of 42521025224534 is 43542252012524.

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

It is a super-2 number, since 2×42521025224534² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42521025224491 and 42521025224500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10630256306132 + ... + 10630256306135.

It is an arithmetic number, because the mean of its divisors is an integer number (15945384459201).

Almost surely, 2^{42521025224534} is an apocalyptic number.

42521025224534 is a deficient number, since it is larger than the sum of its proper divisors (21260512612270).

42521025224534 is a wasteful number, since it uses less digits than its factorization.

42521025224534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260512612269.

The product of its (nonzero) digits is 768000, while the sum is 41.

The spelling of 42521025224534 in words is "forty-two trillion, five hundred twenty-one billion, twenty-five million, two hundred twenty-four thousand, five hundred thirty-four".