42253761 has 8 divisors (see below), whose sum is σ = 61460064. Its totient is φ = 25608320.

The previous prime is 42253759. The next prime is 42253769. The reversal of 42253761 is 16735224.

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

It is a cyclic number.

It is not a de Polignac number, because 42253761 - 2¹ = 42253759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42253769) 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, 640176 + ... + 640241.

It is an arithmetic number, because the mean of its divisors is an integer number (7682508).

Almost surely, 2^42253761 is an apocalyptic number.

It is an amenable number.

42253761 is a deficient number, since it is larger than the sum of its proper divisors (19206303).

42253761 is a wasteful number, since it uses less digits than its factorization.

42253761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280431.

The product of its digits is 10080, while the sum is 30.

The square root of 42253761 is about 6500.2893012542. The cubic root of 42253761 is about 348.3013227810.

Adding to 42253761 its reverse (16735224), we get a palindrome (58988985).

The spelling of 42253761 in words is "forty-two million, two hundred fifty-three thousand, seven hundred sixty-one".