551401090 has 16 divisors (see below), whose sum is σ = 1044760320. Its totient is φ = 208951920.

The previous prime is 551401073. The next prime is 551401091. The reversal of 551401090 is 90104155.

It is not an unprimeable number, because it can be changed into a prime (551401091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450866 + ... + 1451245.

It is an arithmetic number, because the mean of its divisors is an integer number (65297520).

Almost surely, 2^551401090 is an apocalyptic number.

551401090 is a deficient number, since it is larger than the sum of its proper divisors (493359230).

551401090 is a wasteful number, since it uses less digits than its factorization.

551401090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902137.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 551401090 is about 23481.9311386436. The cubic root of 551401090 is about 820.0164035981.

The spelling of 551401090 in words is "five hundred fifty-one million, four hundred one thousand, ninety".