26990051 has 16 divisors (see below), whose sum is σ = 31363200. Its totient is φ = 22968000.

The previous prime is 26990003. The next prime is 26990053. The reversal of 26990051 is 15009962.

It is a de Polignac number, because none of the positive numbers 2^k-26990051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26990053) 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, 17876 + ... + 19326.

It is an arithmetic number, because the mean of its divisors is an integer number (1960200).

Almost surely, 2^26990051 is an apocalyptic number.

26990051 is a deficient number, since it is larger than the sum of its proper divisors (4373149).

26990051 is a wasteful number, since it uses less digits than its factorization.

26990051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 26990051 is about 5195.1949915282. The cubic root of 26990051 is about 299.9631473250.

The spelling of 26990051 in words is "twenty-six million, nine hundred ninety thousand, fifty-one".