54972155 has 8 divisors (see below), whose sum is σ = 75390432. Its totient is φ = 37695168.

The previous prime is 54972143. The next prime is 54972167. The reversal of 54972155 is 55127945.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54972143) and next prime (54972167).

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

It is not a de Polignac number, because 54972155 - 2⁶ = 54972091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785282 + ... + 785351.

It is an arithmetic number, because the mean of its divisors is an integer number (9423804).

Almost surely, 2^54972155 is an apocalyptic number.

54972155 is a deficient number, since it is larger than the sum of its proper divisors (20418277).

54972155 is a wasteful number, since it uses less digits than its factorization.

54972155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570645.

The product of its digits is 63000, while the sum is 38.

The square root of 54972155 is about 7414.3209399108. The cubic root of 54972155 is about 380.2310575388.

The spelling of 54972155 in words is "fifty-four million, nine hundred seventy-two thousand, one hundred fifty-five".