126550020 has 24 divisors (see below), whose sum is σ = 354340224. Its totient is φ = 33746656.

The previous prime is 126550009. The next prime is 126550031. The reversal of 126550020 is 20055621.

It is an interprime number because it is at equal distance from previous prime (126550009) and next prime (126550031).

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, 1054524 + ... + 1054643.

It is an arithmetic number, because the mean of its divisors is an integer number (14764176).

Almost surely, 2^126550020 is an apocalyptic number.

126550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126550020 is an abundant number, since it is smaller than the sum of its proper divisors (227790204).

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

126550020 is a wasteful number, since it uses less digits than its factorization.

126550020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109179 (or 2109177 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 126550020 is about 11249.4453196591. The cubic root of 126550020 is about 502.0582092573.

The spelling of 126550020 in words is "one hundred twenty-six million, five hundred fifty thousand, twenty".