42250616542 has 4 divisors (see below), whose sum is σ = 63375924816. Its totient is φ = 21125308270.

The previous prime is 42250616531. The next prime is 42250616543. The reversal of 42250616542 is 24561605224.

It is a happy number.

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

It is a super-2 number, since 2×42250616542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42250616543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10562654134 + ... + 10562654137.

It is an arithmetic number, because the mean of its divisors is an integer number (15843981204).

Almost surely, 2^42250616542 is an apocalyptic number.

42250616542 is a deficient number, since it is larger than the sum of its proper divisors (21125308274).

42250616542 is a wasteful number, since it uses less digits than its factorization.

42250616542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125308273.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 42250616542 in words is "forty-two billion, two hundred fifty million, six hundred sixteen thousand, five hundred forty-two".