54042051 has 32 divisors (see below), whose sum is σ = 86976000. Its totient is φ = 29799840.

The previous prime is 54042049. The next prime is 54042067. The reversal of 54042051 is 15024045.

It is not a de Polignac number, because 54042051 - 2¹ = 54042049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54042011) 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, 28936 + ... + 30746.

It is an arithmetic number, because the mean of its divisors is an integer number (2718000).

Almost surely, 2^54042051 is an apocalyptic number.

54042051 is a deficient number, since it is larger than the sum of its proper divisors (32933949).

54042051 is a wasteful number, since it uses less digits than its factorization.

54042051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 54042051 is about 7351.3298796884. The cubic root of 54042051 is about 378.0744023639.

Adding to 54042051 its reverse (15024045), we get a palindrome (69066096).

The spelling of 54042051 in words is "fifty-four million, forty-two thousand, fifty-one".