42001553501 has 8 divisors (see below), whose sum is σ = 44279061600. Its totient is φ = 39730735440.

The previous prime is 42001553497. The next prime is 42001553509. The reversal of 42001553501 is 10535510024.

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 42001553501 - 2² = 42001553497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001553509) 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, 1659611 + ... + 1684728.

It is an arithmetic number, because the mean of its divisors is an integer number (5534882700).

Almost surely, 2^42001553501 is an apocalyptic number.

It is an amenable number.

42001553501 is a deficient number, since it is larger than the sum of its proper divisors (2277508099).

42001553501 is a wasteful number, since it uses less digits than its factorization.

42001553501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345019.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 42001553501 in words is "forty-two billion, one million, five hundred fifty-three thousand, five hundred one".