55078254 has 96 divisors (see below), whose sum is σ = 152006400. Its totient is φ = 14288400.

The previous prime is 55078253. The next prime is 55078277. The reversal of 55078254 is 45287055.

It is a happy number.

It is a super-2 number, since 2×55078254² = 6067228127377032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55078253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67509 + ... + 68319.

It is an arithmetic number, because the mean of its divisors is an integer number (1583400).

Almost surely, 2^55078254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55078254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76003200).

55078254 is an abundant number, since it is smaller than the sum of its proper divisors (96928146).

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

55078254 is a wasteful number, since it uses less digits than its factorization.

55078254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 55078254 is about 7421.4724954014. The cubic root of 55078254 is about 380.4755219630.

The spelling of 55078254 in words is "fifty-five million, seventy-eight thousand, two hundred fifty-four".