242553501 has 32 divisors (see below), whose sum is σ = 381905280. Its totient is φ = 151619328.

The previous prime is 242553481. The next prime is 242553503. The reversal of 242553501 is 105355242.

It is a happy number.

It is not a de Polignac number, because 242553501 - 2¹¹ = 242551453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242553503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144670 + ... + 146336.

It is an arithmetic number, because the mean of its divisors is an integer number (11934540).

Almost surely, 2^242553501 is an apocalyptic number.

It is an amenable number.

242553501 is a deficient number, since it is larger than the sum of its proper divisors (139351779).

242553501 is a wasteful number, since it uses less digits than its factorization.

242553501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 242553501 is about 15574.1292212438. The cubic root of 242553501 is about 623.6427087371.

The spelling of 242553501 in words is "two hundred forty-two million, five hundred fifty-three thousand, five hundred one".