7257055 has 16 divisors (see below), whose sum is σ = 9483264. Its totient is φ = 5299200.

The previous prime is 7257043. The next prime is 7257073. The reversal of 7257055 is 5507527.

It is not a de Polignac number, because 7257055 - 2⁵ = 7257023 is a prime.

It is a Duffinian number.

7257055 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5730 + ... + 6880.

It is an arithmetic number, because the mean of its divisors is an integer number (592704).

Almost surely, 2^7257055 is an apocalyptic number.

7257055 is a deficient number, since it is larger than the sum of its proper divisors (2226209).

7257055 is a wasteful number, since it uses less digits than its factorization.

7257055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 7257055 is about 2693.8921656221. The cubic root of 7257055 is about 193.6065910689.

The spelling of 7257055 in words is "seven million, two hundred fifty-seven thousand, fifty-five".