54262639 has 4 divisors (see below), whose sum is σ = 55586160. Its totient is φ = 52939120.

The previous prime is 54262633. The next prime is 54262643. The reversal of 54262639 is 93626245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93626245 = 5 ⋅18725249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54262639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54262598 and 54262607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54262633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661699 + ... + 661780.

It is an arithmetic number, because the mean of its divisors is an integer number (13896540).

Almost surely, 2^54262639 is an apocalyptic number.

54262639 is a deficient number, since it is larger than the sum of its proper divisors (1323521).

54262639 is a wasteful number, since it uses less digits than its factorization.

54262639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323520.

The product of its digits is 77760, while the sum is 37.

The square root of 54262639 is about 7366.3178725874. The cubic root of 54262639 is about 378.5881101127.

The spelling of 54262639 in words is "fifty-four million, two hundred sixty-two thousand, six hundred thirty-nine".