54129457 has 8 divisors (see below), whose sum is σ = 56707200. Its totient is φ = 51599184.

The previous prime is 54129443. The next prime is 54129463. The reversal of 54129457 is 75492145.

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 54129457 - 2⁷ = 54129329 is a prime.

It is a super-2 number, since 2×54129457² = 5859996230229698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54129407) 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, 9523 + ... + 14104.

It is an arithmetic number, because the mean of its divisors is an integer number (7088400).

Almost surely, 2^54129457 is an apocalyptic number.

It is an amenable number.

54129457 is a deficient number, since it is larger than the sum of its proper divisors (2577743).

54129457 is a wasteful number, since it uses less digits than its factorization.

54129457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23735.

The product of its digits is 50400, while the sum is 37.

The square root of 54129457 is about 7357.2723885962. The cubic root of 54129457 is about 378.2781213243.

The spelling of 54129457 in words is "fifty-four million, one hundred twenty-nine thousand, four hundred fifty-seven".