63542155 has 8 divisors (see below), whose sum is σ = 76295232. Its totient is φ = 50803968.

The previous prime is 63542131. The next prime is 63542179. The reversal of 63542155 is 55124536.

It is an interprime number because it is at equal distance from previous prime (63542131) and next prime (63542179).

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 63542155 - 2¹³ = 63533963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10894 + ... + 15676.

It is an arithmetic number, because the mean of its divisors is an integer number (9536904).

Almost surely, 2^63542155 is an apocalyptic number.

63542155 is a deficient number, since it is larger than the sum of its proper divisors (12753077).

63542155 is a wasteful number, since it uses less digits than its factorization.

63542155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7445.

The product of its digits is 18000, while the sum is 31.

The square root of 63542155 is about 7971.3333263639. Note that the first 4 decimals coincide. The cubic root of 63542155 is about 399.0438726221.

The spelling of 63542155 in words is "sixty-three million, five hundred forty-two thousand, one hundred fifty-five".