1955275390 has 16 divisors (see below), whose sum is σ = 3569067360. Its totient is φ = 771094240.

The previous prime is 1955275367. The next prime is 1955275393. The reversal of 1955275390 is 935725591.

It is a self number, because there is not a number n which added to its sum of digits gives 1955275390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955275393) 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, 1376245 + ... + 1377664.

It is an arithmetic number, because the mean of its divisors is an integer number (223066710).

Almost surely, 2^1955275390 is an apocalyptic number.

1955275390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955275390 is a deficient number, since it is larger than the sum of its proper divisors (1613791970).

1955275390 is a wasteful number, since it uses less digits than its factorization.

1955275390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753987.

The product of its (nonzero) digits is 425250, while the sum is 46.

The square root of 1955275390 is about 44218.4960169384. The cubic root of 1955275390 is about 1250.4585816084.

The spelling of 1955275390 in words is "one billion, nine hundred fifty-five million, two hundred seventy-five thousand, three hundred ninety".