55377930 has 16 divisors (see below), whose sum is σ = 132907104. Its totient is φ = 14767440.

The previous prime is 55377929. The next prime is 55377953. The reversal of 55377930 is 3977355.

55377930 = 3326² + 3327² + ... + 3330².

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, 922936 + ... + 922995.

It is an arithmetic number, because the mean of its divisors is an integer number (8306694).

Almost surely, 2^55377930 is an apocalyptic number.

55377930 is an abundant number, since it is smaller than the sum of its proper divisors (77529174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55377930 is a wasteful number, since it uses less digits than its factorization.

55377930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845941.

The product of its (nonzero) digits is 99225, while the sum is 39.

The square root of 55377930 is about 7441.6349010147. The cubic root of 55377930 is about 381.1643190061.

The spelling of 55377930 in words is "fifty-five million, three hundred seventy-seven thousand, nine hundred thirty".