11551390 has 16 divisors (see below), whose sum is σ = 20920032. Its totient is φ = 4592224.

The previous prime is 11551369. The next prime is 11551409. The reversal of 11551390 is 9315511.

It is a super-2 number, since 2×11551390² = 266869221864200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789 + ... + 5128.

It is an arithmetic number, because the mean of its divisors is an integer number (1307502).

Almost surely, 2^11551390 is an apocalyptic number.

11551390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11551390 is a deficient number, since it is larger than the sum of its proper divisors (9368642).

11551390 is a wasteful number, since it uses less digits than its factorization.

11551390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 11551390 is about 3398.7335876764. The cubic root of 11551390 is about 226.0535936803.

The spelling of 11551390 in words is "eleven million, five hundred fifty-one thousand, three hundred ninety".