2620251 has 12 divisors (see below), whose sum is σ = 3820960. Its totient is φ = 1730160.

The previous prime is 2620231. The next prime is 2620253. The reversal of 2620251 is 1520262.

It is a de Polignac number, because none of the positive numbers 2^k-2620251 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2620253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355 + ... + 2316.

2^2620251 is an apocalyptic number.

2620251 is a deficient number, since it is larger than the sum of its proper divisors (1200709).

2620251 is a wasteful number, since it uses less digits than its factorization.

2620251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2620251 is about 1618.7189379259. The cubic root of 2620251 is about 137.8629704694.

The spelling of 2620251 in words is "two million, six hundred twenty thousand, two hundred fifty-one".