28542475 has 24 divisors (see below), whose sum is σ = 39358592. Its totient is φ = 20390400.

The previous prime is 28542457. The next prime is 28542491. The reversal of 28542475 is 57424582.

It is a happy number.

It is not a de Polignac number, because 28542475 - 2¹¹ = 28540427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8659 + ... + 11491.

Almost surely, 2^28542475 is an apocalyptic number.

28542475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28542475 is a deficient number, since it is larger than the sum of its proper divisors (10816117).

28542475 is a wasteful number, since it uses less digits than its factorization.

28542475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887 (or 2882 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 28542475 is about 5342.5157931446. The cubic root of 28542475 is about 305.6074073008.

It can be divided in two parts, 2854 and 2475, that added together give a square (5329 = 73²).

The spelling of 28542475 in words is "twenty-eight million, five hundred forty-two thousand, four hundred seventy-five".