55550070 has 64 divisors (see below), whose sum is σ = 148861440. Its totient is φ = 14740704.

The previous prime is 55550059. The next prime is 55550081. The reversal of 55550070 is 7005555.

It is an interprime number because it is at equal distance from previous prime (55550059) and next prime (55550081).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76047 + ... + 76773.

It is an arithmetic number, because the mean of its divisors is an integer number (2325960).

Almost surely, 2^55550070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55550070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74430720).

55550070 is an abundant number, since it is smaller than the sum of its proper divisors (93311370).

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

55550070 is a wasteful number, since it uses less digits than its factorization.

55550070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 27.

The square root of 55550070 is about 7453.1919336617. The cubic root of 55550070 is about 381.5588549839.

It can be divided in two parts, 555 and 50070, that added together give a 4-th power (50625 = 15⁴).

The spelling of 55550070 in words is "fifty-five million, five hundred fifty thousand, seventy".