2472561 has 24 divisors (see below), whose sum is σ = 4397120. Its totient is φ = 1303776.

The previous prime is 2472559. The next prime is 2472577. The reversal of 2472561 is 1652742.

It is not a de Polignac number, because 2472561 - 2¹ = 2472559 is a prime.

It is a super-2 number, since 2×2472561² = 12227115797442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2472541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691 + ... + 2328.

2^2472561 is an apocalyptic number.

2472561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2472561 is a deficient number, since it is larger than the sum of its proper divisors (1924559).

2472561 is a wasteful number, since it uses less digits than its factorization.

2472561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3042 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2472561 is about 1572.4379161035. The cubic root of 2472561 is about 135.2225136988. Note that the first 3 decimals are identical.

The spelling of 2472561 in words is "two million, four hundred seventy-two thousand, five hundred sixty-one".