542157551 has 8 divisors (see below), whose sum is σ = 589320144. Its totient is φ = 495774720.

The previous prime is 542157547. The next prime is 542157601. The reversal of 542157551 is 155751245.

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 542157551 - 2² = 542157547 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 (542157151) 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, 193490 + ... + 196271.

It is an arithmetic number, because the mean of its divisors is an integer number (73665018).

Almost surely, 2^542157551 is an apocalyptic number.

542157551 is a deficient number, since it is larger than the sum of its proper divisors (47162593).

542157551 is a wasteful number, since it uses less digits than its factorization.

542157551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389881.

The product of its digits is 35000, while the sum is 35.

The square root of 542157551 is about 23284.2769052423. The cubic root of 542157551 is about 815.4083797756.

The spelling of 542157551 in words is "five hundred forty-two million, one hundred fifty-seven thousand, five hundred fifty-one".