2499975 has 36 divisors (see below), whose sum is σ = 4603872. Its totient is φ = 1296000.

The previous prime is 2499967. The next prime is 2499983. The reversal of 2499975 is 5799942.

It is an interprime number because it is at equal distance from previous prime (2499967) and next prime (2499983).

It is not a de Polignac number, because 2499975 - 2³ = 2499967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 2499975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9090 + ... + 9360.

2^2499975 is an apocalyptic number.

2499975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2499975 is a deficient number, since it is larger than the sum of its proper divisors (2103897).

2499975 is a wasteful number, since it uses less digits than its factorization.

2499975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 320 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 2499975 is about 1581.1309243703. The cubic root of 2499975 is about 135.7204284253.

2499975 divided by its sum of digits (45) gives a palindrome (55555).

It can be divided in two parts, 24 and 99975, that added together give a palindrome (99999).

The spelling of 2499975 in words is "two million, four hundred ninety-nine thousand, nine hundred seventy-five".