2535921 has 8 divisors (see below), whose sum is σ = 3756960. Its totient is φ = 1690596.

The previous prime is 2535919. The next prime is 2535937. The reversal of 2535921 is 1295352.

It is not a de Polignac number, because 2535921 - 2¹ = 2535919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 93923 = 2535921 / (2 + 5 + 3 + 5 + 9 + 2 + 1).

2535921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2535901) 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, 46935 + ... + 46988.

It is an arithmetic number, because the mean of its divisors is an integer number (469620).

2^2535921 is an apocalyptic number.

It is an amenable number.

2535921 is a deficient number, since it is larger than the sum of its proper divisors (1221039).

2535921 is an equidigital number, since it uses as much as digits as its factorization.

2535921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93932 (or 93926 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2535921 is about 1592.4575347556. The cubic root of 2535921 is about 136.3678227806.

The spelling of 2535921 in words is "two million, five hundred thirty-five thousand, nine hundred twenty-one".