7900551 has 16 divisors (see below), whose sum is σ = 11927520. Its totient is φ = 5166720.

The previous prime is 7900549. The next prime is 7900583. The reversal of 7900551 is 1550097.

7900551 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7900551 - 2¹ = 7900549 is a prime.

It is a super-2 number, since 2×7900551² = 124837412207202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7900531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330 + ... + 4191.

It is an arithmetic number, because the mean of its divisors is an integer number (745470).

Almost surely, 2^7900551 is an apocalyptic number.

7900551 is a deficient number, since it is larger than the sum of its proper divisors (4026969).

7900551 is a wasteful number, since it uses less digits than its factorization.

7900551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583 (or 5577 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 7900551 is about 2810.7918813032. The cubic root of 7900551 is about 199.1678003550.

The spelling of 7900551 in words is "seven million, nine hundred thousand, five hundred fifty-one".